1 00:00:06,100 --> 00:00:09,580 Speaker 1: Hey, welcome to Stuff to Blow Your Mind. It's a Saturday, 2 00:00:09,619 --> 00:00:12,290 Speaker 1: so we have a vault episode for you here today. 3 00:00:12,330 --> 00:00:16,810 Speaker 1: This one originally published 9-18-2025. It is our episode titled 4 00:00:16,970 --> 00:00:18,950 Speaker 1: Jaws of the Giant Clam. We're going to get in 5 00:00:19,010 --> 00:00:21,430 Speaker 1: and discuss the biology, but also myths and legends and 6 00:00:21,470 --> 00:00:25,799 Speaker 1: traditions surrounding the giant clam. Hope you enjoy. 7 00:00:29,650 --> 00:00:32,760 Speaker 2: Welcome to Stuff to Blow Your Mind, a production of iHeartRadio. 8 00:00:39,440 --> 00:00:41,620 Speaker 1: Hey, welcome to Stuff to Blow Your Mind. My name 9 00:00:41,659 --> 00:00:42,380 Speaker 1: is Robert Lamb. 10 00:00:42,740 --> 00:00:43,840 Speaker 3: And I'm Joe McCormick. 11 00:00:44,300 --> 00:00:47,010 Speaker 1: And in this episode, we're going to be diving deeper 12 00:00:47,130 --> 00:00:50,450 Speaker 1: on a topic that we first explored just a little 13 00:00:50,490 --> 00:00:53,010 Speaker 1: bit on an episode of Animalia Stupendium, which, of course, 14 00:00:53,070 --> 00:00:56,070 Speaker 1: is one of our shorties that airs on Wednesdays. And 15 00:00:56,090 --> 00:00:59,300 Speaker 1: that is the subject of the giant clam. I found 16 00:00:59,340 --> 00:01:02,080 Speaker 1: this to be a fascinating topic to explore because on 17 00:01:02,200 --> 00:01:05,300 Speaker 1: one hand, the giant clam is just an amazing organism, 18 00:01:05,440 --> 00:01:07,759 Speaker 1: notable not only for its size, but also for its 19 00:01:07,880 --> 00:01:11,679 Speaker 1: unique symbiosis. But in addition to this, it's an organism 20 00:01:11,720 --> 00:01:17,000 Speaker 1: that has continually invited creative but highly inaccurate ideas about 21 00:01:17,170 --> 00:01:18,430 Speaker 1: how they actually behave. 22 00:01:19,220 --> 00:01:21,459 Speaker 3: It's not hard to see why people might look at 23 00:01:21,500 --> 00:01:24,320 Speaker 3: this thing and think that it will bite you because 24 00:01:24,360 --> 00:01:27,180 Speaker 3: it just looks like the whole thing is just a 25 00:01:27,200 --> 00:01:29,580 Speaker 3: pair of jaws, like cartoon teeth. 26 00:01:30,080 --> 00:01:30,360 Speaker 1: Yes. 27 00:01:30,540 --> 00:01:30,740 Speaker 3: Yeah. 28 00:01:30,819 --> 00:01:33,560 Speaker 1: And as we'll be exploring, I think the really interesting 29 00:01:33,620 --> 00:01:36,650 Speaker 1: thing here is that you see this this idea, this 30 00:01:36,709 --> 00:01:40,430 Speaker 1: interpretation resonating not only with people who don't know any better, 31 00:01:40,790 --> 00:01:44,230 Speaker 1: who are, you know, one or multiple degrees away from 32 00:01:44,490 --> 00:01:48,050 Speaker 1: this organism in its natural habitat. but also people in 33 00:01:48,090 --> 00:01:52,080 Speaker 1: close proximity to it can be overwhelmed by the fact 34 00:01:52,120 --> 00:01:54,020 Speaker 1: that it looks like a big mouth. What if it 35 00:01:54,240 --> 00:01:58,080 Speaker 1: was like a big mouth? And what would the consequences 36 00:01:58,140 --> 00:02:00,980 Speaker 1: of that be? The most pervasive idea, of course, is 37 00:02:01,020 --> 00:02:04,240 Speaker 1: we're talking about the idea that a giant clam might 38 00:02:04,360 --> 00:02:07,970 Speaker 1: latch onto your leg while you were diving or snorkeling, 39 00:02:08,750 --> 00:02:11,810 Speaker 1: or even in a very cartoon sense, swallow you whole. 40 00:02:12,530 --> 00:02:14,010 Speaker 1: And to be clear, just to go ahead and get 41 00:02:14,030 --> 00:02:17,220 Speaker 1: this out at the top, This has never happened. There's 42 00:02:17,260 --> 00:02:20,160 Speaker 1: no recorded evidence of it ever happening. And for reasons 43 00:02:20,210 --> 00:02:23,930 Speaker 1: we'll discuss, very good reasons, it pretty much never could happen. 44 00:02:24,350 --> 00:02:29,070 Speaker 3: That's right. There's like one really famous anecdote of a 45 00:02:29,110 --> 00:02:33,070 Speaker 3: guy claiming that it happened and he was there. And 46 00:02:33,110 --> 00:02:34,730 Speaker 3: I saw one of the babies and the baby looked 47 00:02:34,770 --> 00:02:38,230 Speaker 3: at me. There are strong reasons for thinking that this 48 00:02:38,270 --> 00:02:42,139 Speaker 3: story is not true. And and other than that, it's 49 00:02:42,200 --> 00:02:46,799 Speaker 3: mostly just vague generalizations from people not citing any evidence 50 00:02:47,280 --> 00:02:49,720 Speaker 3: or fictional storytelling. Right, right. 51 00:02:50,240 --> 00:02:51,840 Speaker 1: You know, there are all sorts of things that can 52 00:02:51,880 --> 00:02:53,639 Speaker 1: go wrong in the water and there are lots of 53 00:02:53,720 --> 00:02:57,660 Speaker 1: ways you can become injured and so forth. But this 54 00:02:57,740 --> 00:02:59,190 Speaker 1: is not really one of them. And I think if 55 00:02:59,220 --> 00:03:00,910 Speaker 1: you were going to if you were going to pin 56 00:03:01,310 --> 00:03:04,269 Speaker 1: your death on a giant clam, it would be like 57 00:03:04,650 --> 00:03:06,490 Speaker 1: you would have to essentially like strap yourself to the 58 00:03:06,530 --> 00:03:10,790 Speaker 1: giant clam and die. drown underwater. You would have to 59 00:03:10,870 --> 00:03:13,730 Speaker 1: frame it in a major and significant way. So yeah, 60 00:03:13,770 --> 00:03:16,100 Speaker 1: in some ways, this I think is reminiscent of a 61 00:03:16,139 --> 00:03:18,460 Speaker 1: recent look at manta rays and the ways that European 62 00:03:18,500 --> 00:03:22,440 Speaker 1: sailors in particular misinterpreted the great fish as a threat. 63 00:03:23,260 --> 00:03:25,280 Speaker 1: But again, the curious thing about the myth of the 64 00:03:25,320 --> 00:03:27,810 Speaker 1: man-eating clam is that while you certainly find it circulating 65 00:03:27,820 --> 00:03:31,690 Speaker 1: in the 19th and 20th century among Europeans and Americans, 66 00:03:32,090 --> 00:03:35,590 Speaker 1: the idea also exists among Native peoples who would have 67 00:03:35,630 --> 00:03:38,010 Speaker 1: had a more hands-on understanding of what these creatures were 68 00:03:38,050 --> 00:03:42,450 Speaker 1: all about. But again, we're susceptible to, on one level, 69 00:03:42,470 --> 00:03:45,290 Speaker 1: the kind of creative thinking like, you know, this can 70 00:03:45,330 --> 00:03:49,290 Speaker 1: occur separate from a logical interpretation. You know, the idea that, 71 00:03:49,330 --> 00:03:51,070 Speaker 1: you know, it's not a mouth, but what if it 72 00:03:51,350 --> 00:03:53,490 Speaker 1: is a mouth? And I think we'll maybe get into 73 00:03:53,510 --> 00:03:56,090 Speaker 1: a little bit about how maybe we're just hardwired to 74 00:03:56,190 --> 00:03:59,010 Speaker 1: see the jaws that could consume us, even if we 75 00:03:59,070 --> 00:04:00,650 Speaker 1: know those are not jaws. 76 00:04:00,670 --> 00:04:01,790 Speaker 3: Right. 77 00:04:02,810 --> 00:04:04,850 Speaker 1: So yeah, it just, I think it might just boil 78 00:04:04,880 --> 00:04:07,740 Speaker 1: down to the fact that a giant clam especially just 79 00:04:07,780 --> 00:04:09,860 Speaker 1: looks too much like a big old mouth for us 80 00:04:09,900 --> 00:04:10,670 Speaker 1: to move past it. 81 00:04:11,280 --> 00:04:13,500 Speaker 3: And if you've never seen one of these, by the way, 82 00:04:13,580 --> 00:04:19,560 Speaker 3: you can look up a, a giant clam or tridacna clam, T-R-I-D-A-C-N-A. Uh, 83 00:04:19,690 --> 00:04:24,210 Speaker 3: these things have a, uh, a waviness to their shells. 84 00:04:24,350 --> 00:04:27,880 Speaker 3: You know, the way the shell closes, it, uh, It 85 00:04:28,029 --> 00:04:31,150 Speaker 3: is not just a straight curved line across. It waves 86 00:04:31,250 --> 00:04:33,610 Speaker 3: up and down like a, you know, oscillation of a 87 00:04:33,630 --> 00:04:37,250 Speaker 3: sound wave or something, which sort of suggests teeth and 88 00:04:37,370 --> 00:04:39,980 Speaker 3: further lends itself into the mouth interpretation. 89 00:04:41,180 --> 00:04:45,520 Speaker 1: Now, speaking of mouths, it's interesting that Tridacna apparently stems 90 00:04:45,540 --> 00:04:49,400 Speaker 1: from the Latin for three bites. And this goes back 91 00:04:49,440 --> 00:04:51,529 Speaker 1: to the writings of like Pliny the Elder and even 92 00:04:51,550 --> 00:04:54,420 Speaker 1: the conquest of Alexander the Great. where it was said 93 00:04:54,500 --> 00:04:58,740 Speaker 1: that these could supply such meat as to require not one, 94 00:04:58,800 --> 00:05:01,580 Speaker 1: not two, but three bites for you to consume it all. 95 00:05:01,640 --> 00:05:05,580 Speaker 1: So the name actually originates in us eating them rather 96 00:05:05,640 --> 00:05:08,300 Speaker 1: than any fabulous reversal on that. 97 00:05:09,430 --> 00:05:11,310 Speaker 3: And people do eat them, by the way. A lot 98 00:05:11,320 --> 00:05:15,050 Speaker 3: of people believe the meat of this clam is a delicacy. 99 00:05:15,230 --> 00:05:17,770 Speaker 3: A lot of people think it's really delicious. This has 100 00:05:17,890 --> 00:05:22,549 Speaker 3: greatly harmed the clams. They're now in a, I believe, 101 00:05:22,910 --> 00:05:26,630 Speaker 3: listed by the IUCN as a critically endangered species. And 102 00:05:26,650 --> 00:05:30,840 Speaker 3: there are efforts at combating this by changing over some 103 00:05:30,900 --> 00:05:34,640 Speaker 3: of the trade in their meat to like farmed populations 104 00:05:34,720 --> 00:05:38,719 Speaker 3: instead of wild populations, reseeding wild populations and things like that. 105 00:05:39,290 --> 00:05:42,089 Speaker 3: But yeah, people are definitely getting some three bites there. 106 00:05:43,120 --> 00:05:46,260 Speaker 1: Yeah, because they're an important part of coral reef environments, 107 00:05:46,279 --> 00:05:49,280 Speaker 1: the coral reef environments that they call home. Now, I 108 00:05:49,320 --> 00:05:52,240 Speaker 1: was excited to look into giant clams. I didn't really 109 00:05:52,279 --> 00:05:55,640 Speaker 1: have giant clams on my mind at all, because aside 110 00:05:55,660 --> 00:05:57,280 Speaker 1: from maybe in the background, I had kind of like 111 00:05:57,320 --> 00:06:00,020 Speaker 1: a Looney Tunes idea of them, you know, swallowing a 112 00:06:00,060 --> 00:06:03,729 Speaker 1: diving bugs bunny or something to that effect. But as 113 00:06:03,930 --> 00:06:06,180 Speaker 1: I've previously mentioned on the show, over the summer, I 114 00:06:06,190 --> 00:06:08,650 Speaker 1: had the privilege of visiting the islands of Raja Ampat 115 00:06:08,750 --> 00:06:12,750 Speaker 1: in Indonesia, where, you know, rich diversity of marine life 116 00:06:13,650 --> 00:06:17,640 Speaker 1: And this included the giant Tridacna clams. And, of course, 117 00:06:17,680 --> 00:06:22,539 Speaker 1: the biggest of all, Tridacna gigas. And a particularly large 118 00:06:22,720 --> 00:06:26,700 Speaker 1: one in the area was known informally as Wu-Tang clam. 119 00:06:27,310 --> 00:06:30,690 Speaker 1: And so I didn't get to dive right down to 120 00:06:30,730 --> 00:06:33,930 Speaker 1: Wu-Tang clam because Wu-Tang clam was like a little deeper 121 00:06:34,390 --> 00:06:36,609 Speaker 1: than many of the other giant clams I was seeing. 122 00:06:36,690 --> 00:06:40,800 Speaker 1: But it was still substantially large. And I included a 123 00:06:41,040 --> 00:06:45,890 Speaker 1: photograph of Wu-Tang clam for you here, Joe. I'm like 99% 124 00:06:45,890 --> 00:06:47,730 Speaker 1: sure this is a Wu-Tang clam, but this is a 125 00:06:47,790 --> 00:06:51,930 Speaker 1: shot from down there at its level with proper lighting. 126 00:06:52,470 --> 00:06:55,180 Speaker 3: Oh, wow. Yeah, just looking at this one image here, 127 00:06:55,279 --> 00:07:00,360 Speaker 3: it is so crusty with life all over it. It's 128 00:07:00,420 --> 00:07:02,960 Speaker 3: hard to see this as just one organism, as one 129 00:07:03,100 --> 00:07:07,190 Speaker 3: clam with its two valves, you know, slightly parted. it 130 00:07:07,210 --> 00:07:09,890 Speaker 3: looks more like a, I don't know, a big piece 131 00:07:09,910 --> 00:07:11,390 Speaker 3: of coral reef or something. 132 00:07:11,650 --> 00:07:14,760 Speaker 1: Well, that underscores the reality here that, yeah, they are 133 00:07:15,120 --> 00:07:19,440 Speaker 1: reef builders in the long term. Like, you know, they settle, 134 00:07:19,560 --> 00:07:22,360 Speaker 1: they grow, they're in one spot. And when they eventually 135 00:07:22,460 --> 00:07:25,180 Speaker 1: pass on for one reason or another, you know, they 136 00:07:25,240 --> 00:07:29,930 Speaker 1: will be the bones of future coral reefs. So, yeah, 137 00:07:30,030 --> 00:07:32,070 Speaker 1: that's one of the reasons they're so vitally important to 138 00:07:32,110 --> 00:07:32,750 Speaker 1: these environments. 139 00:07:33,320 --> 00:07:36,420 Speaker 3: Another reason I think Rob, maybe you can confirm this 140 00:07:36,480 --> 00:07:38,680 Speaker 3: because I guess you have seen them up close. I 141 00:07:38,820 --> 00:07:42,820 Speaker 3: think sometimes people might not recognize they're looking at a 142 00:07:42,880 --> 00:07:47,220 Speaker 3: giant clam, especially if they're like looking down from above, 143 00:07:47,340 --> 00:07:50,480 Speaker 3: because it's not, you don't obviously see the shell. You 144 00:07:50,540 --> 00:07:54,700 Speaker 3: might just see a kind of ripply looking sheet of the, 145 00:07:54,810 --> 00:07:58,430 Speaker 3: the inner flesh of the clam, like the mantle protruding 146 00:07:58,490 --> 00:08:00,650 Speaker 3: from out of the shell, because in a lot of cases, 147 00:08:01,170 --> 00:08:03,820 Speaker 3: They will be perched somewhere in a kind of sunlit 148 00:08:03,940 --> 00:08:06,920 Speaker 3: sea bottom, and they're trying to spread out and gather 149 00:08:06,980 --> 00:08:09,820 Speaker 3: sunlight on the fleshy parts. And we can talk about 150 00:08:09,840 --> 00:08:12,580 Speaker 3: the reasons for that in just a minute here. But 151 00:08:12,900 --> 00:08:15,700 Speaker 3: you might not actually see something that looks like a clam. 152 00:08:16,100 --> 00:08:18,280 Speaker 3: You might say, what is this, a big kind of flat, 153 00:08:18,360 --> 00:08:22,410 Speaker 3: ripply sea cucumber or something? Because you're just seeing the mantle. Right, right. 154 00:08:22,470 --> 00:08:26,670 Speaker 1: And the mantle tissue can be really eye-catching. Certainly, I 155 00:08:26,710 --> 00:08:29,790 Speaker 1: saw this a lot with the various giant clams that 156 00:08:29,810 --> 00:08:33,050 Speaker 1: I was snorkeling over. They almost feel magical at times, 157 00:08:33,170 --> 00:08:36,969 Speaker 1: seeming to pulsate with a strange energy. And then they would, 158 00:08:37,150 --> 00:08:39,430 Speaker 1: as you would get near them, they would sense you 159 00:08:39,510 --> 00:08:42,560 Speaker 1: for reasons that I'll get into. And the smaller varieties 160 00:08:42,620 --> 00:08:45,540 Speaker 1: in particular would often kind of like maybe not close 161 00:08:45,580 --> 00:08:48,179 Speaker 1: all the way, but kind of tense. Yeah, they were 162 00:08:48,220 --> 00:08:50,740 Speaker 1: very vibrant to look at. And to your point, yeah, 163 00:08:51,800 --> 00:08:55,910 Speaker 1: they are facing mouth up, if you will, because the 164 00:08:55,950 --> 00:09:00,900 Speaker 1: mantle tissue needs to have maximum exposure to sunlight. Whereas 165 00:09:00,960 --> 00:09:03,540 Speaker 1: the Looney Tunes version of the giant clam that might 166 00:09:03,600 --> 00:09:08,390 Speaker 1: eat Bugs Bunny, you tend to imagine it positioned less 167 00:09:08,450 --> 00:09:09,929 Speaker 1: vertically and more horizontally. 168 00:09:10,210 --> 00:09:12,010 Speaker 3: You're right, because it's like a crocodile's mouth. 169 00:09:12,150 --> 00:09:16,170 Speaker 1: Yes, yeah. So as I was passing over these clams, 170 00:09:16,190 --> 00:09:19,689 Speaker 1: the interesting thing is I still knew enough about clams 171 00:09:19,770 --> 00:09:22,960 Speaker 1: and giant clams to know that these things were not 172 00:09:23,640 --> 00:09:25,780 Speaker 1: a danger to me. They were not actually going to 173 00:09:25,820 --> 00:09:28,760 Speaker 1: try and bite me or anything to that effect. And yet, 174 00:09:29,290 --> 00:09:32,800 Speaker 1: there is this undeniable resemblance to some sort of a 175 00:09:32,880 --> 00:09:38,540 Speaker 1: big fleshy mouth or secondary, secondarily, perhaps some sort of 176 00:09:38,600 --> 00:09:43,319 Speaker 1: yonic imagery. And so these associations, I thought about this 177 00:09:43,640 --> 00:09:45,940 Speaker 1: a fair amount as I was passing over them, snorkeling, 178 00:09:46,340 --> 00:09:49,319 Speaker 1: like these associations connect with this, I think, on a 179 00:09:49,380 --> 00:09:52,400 Speaker 1: primal level. And it's hard not to at least casually 180 00:09:52,500 --> 00:09:58,140 Speaker 1: think of what you're seeing in anthropomorphic terms, comparing them to, 181 00:09:58,580 --> 00:10:03,120 Speaker 1: basic human physiological analogs and analogs that are very closely 182 00:10:03,179 --> 00:10:08,819 Speaker 1: tied in to our survival and reproduction and so forth. Mostly, 183 00:10:08,840 --> 00:10:11,330 Speaker 1: we're going to talk about giant clams as mouths. But 184 00:10:11,400 --> 00:10:15,470 Speaker 1: on the subject of yonic imagery, we do certainly see 185 00:10:15,530 --> 00:10:19,630 Speaker 1: interpretations of clamshells in general and the giant clamshell as well. 186 00:10:20,330 --> 00:10:24,429 Speaker 1: as vulva in its use as fertility emblems, as well 187 00:10:24,470 --> 00:10:29,069 Speaker 1: as currency in some cultures in the past. Sometimes you'll 188 00:10:29,110 --> 00:10:32,210 Speaker 1: even see like Botticelli's rendition of the Birth of Venus 189 00:10:32,290 --> 00:10:34,510 Speaker 1: cited in there as well, though the shell that he 190 00:10:34,550 --> 00:10:36,710 Speaker 1: depicts in that painting is a scallop shell, I believe, 191 00:10:36,770 --> 00:10:41,530 Speaker 1: and not actually a clamshell, but it is presented on 192 00:10:41,570 --> 00:10:45,270 Speaker 1: a scale that is more in keeping with a giant clamshell. 193 00:10:46,480 --> 00:10:49,420 Speaker 3: Though I think actually in that, that's also bigger than 194 00:10:49,559 --> 00:10:51,080 Speaker 3: any known giant clam. 195 00:10:51,559 --> 00:10:53,880 Speaker 1: Yeah, as we'll discuss, giant clam shells, I think about 196 00:10:53,920 --> 00:10:56,040 Speaker 1: the maximum you're going to get is like four feet across. 197 00:10:56,300 --> 00:10:57,620 Speaker 3: Yeah, which is very big. 198 00:10:57,640 --> 00:11:02,429 Speaker 1: Still very big. It's still enormous. But, you know, they 199 00:11:02,450 --> 00:11:04,370 Speaker 1: can't fit a Venus. Yeah, you couldn't fit a whole 200 00:11:04,410 --> 00:11:06,849 Speaker 1: Venus in there. You'd have to really scrunch her up. Still, 201 00:11:06,910 --> 00:11:09,850 Speaker 1: seashells in general, you know, pop up in Renaissance paintings, 202 00:11:10,010 --> 00:11:14,099 Speaker 1: paintings sometimes with erotic suggestions in their usage. Though, quite incidentally, 203 00:11:14,360 --> 00:11:18,200 Speaker 1: there is a Venus... genus of clam. I was reading 204 00:11:18,260 --> 00:11:22,679 Speaker 1: about this recently. 18th century Swedish naturalist and father of 205 00:11:22,740 --> 00:11:26,950 Speaker 1: modern taxonomy, Carl Linnaeus, famously described the Venus clam in 206 00:11:27,070 --> 00:11:31,350 Speaker 1: quite sexual terms, which was pretty controversial at the time. 207 00:11:31,750 --> 00:11:36,349 Speaker 1: Critics charged that he, quote, indulged in obscene illusions. Suffice 208 00:11:36,390 --> 00:11:39,780 Speaker 1: to say, it seems quite a common interpretation, second only 209 00:11:40,080 --> 00:11:41,980 Speaker 1: to the view of the clam as a mouth. 210 00:11:42,530 --> 00:11:46,230 Speaker 3: Was Linnaeus not otherwise really known for very expressive or 211 00:11:46,290 --> 00:11:47,710 Speaker 3: controversial descriptions? 212 00:11:48,390 --> 00:11:50,490 Speaker 1: Correct. That's my understanding, is that this was kind of 213 00:11:50,530 --> 00:11:53,150 Speaker 1: an outlier where suddenly everyone was like, whoa, whoa, what 214 00:11:53,190 --> 00:11:58,199 Speaker 1: are you doing? But, you know, I guess the controversy 215 00:11:58,240 --> 00:11:59,500 Speaker 1: died down after a while. 216 00:11:59,840 --> 00:12:00,020 Speaker 2: Yeah. 217 00:12:01,179 --> 00:12:04,239 Speaker 3: It does seem like biology is a funny domain to 218 00:12:04,280 --> 00:12:06,339 Speaker 3: get upset about that in. Yeah, yeah. 219 00:12:08,190 --> 00:12:11,430 Speaker 1: All right, well, speaking of biology, let's go through some 220 00:12:11,470 --> 00:12:15,290 Speaker 1: of the basics of the giant clam here. So again, 221 00:12:15,309 --> 00:12:17,570 Speaker 1: we're talking about, for the most part, we're talking about 222 00:12:17,630 --> 00:12:21,230 Speaker 1: Tridactyna gigas, and it can be found in coral reefs 223 00:12:21,270 --> 00:12:24,390 Speaker 1: of the South Pacific and Indian Oceans. They can reach 224 00:12:24,429 --> 00:12:28,290 Speaker 1: sizes of up to 250 kilograms or 550 pounds, and 225 00:12:28,309 --> 00:12:31,990 Speaker 1: they can grow to somewhere over four feet or 1.2 226 00:12:31,990 --> 00:12:37,030 Speaker 1: meters long or across. So again, maybe not, you know, 227 00:12:37,480 --> 00:12:40,940 Speaker 1: quite man-swallowing size, like we would see in our fiction, 228 00:12:40,980 --> 00:12:44,030 Speaker 1: but still incredibly big. Like, they still look like a, 229 00:12:44,420 --> 00:12:47,950 Speaker 1: they can still look like a massive, like, bio-chest there 230 00:12:48,000 --> 00:12:51,370 Speaker 1: on the seafloor. Yeah. Now, the giant clam, to be 231 00:12:51,410 --> 00:12:55,210 Speaker 1: sure here, doesn't really have a mouth, especially in the 232 00:12:55,230 --> 00:12:57,790 Speaker 1: way you might read it as, again, the Bugs Bunny 233 00:12:57,870 --> 00:13:03,559 Speaker 1: swallowing mouth. Instead, we have the valves. They are bivalves, remember? 234 00:13:03,600 --> 00:13:08,400 Speaker 1: So we have, like, the two shells. that essentially howls 235 00:13:09,120 --> 00:13:12,820 Speaker 1: the organism. And inside they have a pair of siphons, 236 00:13:12,980 --> 00:13:15,040 Speaker 1: one for drawing in food and water and another for 237 00:13:15,100 --> 00:13:19,860 Speaker 1: expelling waste. Furthermore, they're filter feeders and they have no 238 00:13:19,940 --> 00:13:23,200 Speaker 1: need for any jaw-like mechanics. There's no chewing that takes 239 00:13:23,280 --> 00:13:27,750 Speaker 1: place with the two valves. They simply close, or in 240 00:13:27,770 --> 00:13:30,710 Speaker 1: the case of the giant clams, nearly close their shells 241 00:13:30,750 --> 00:13:34,990 Speaker 1: for protection. The giant clams can't actually close them all 242 00:13:35,010 --> 00:13:38,130 Speaker 1: the way for a couple of reasons. And here's another 243 00:13:38,170 --> 00:13:43,040 Speaker 1: big kicker. They close their shells exceedingly slowly. One of 244 00:13:43,080 --> 00:13:47,180 Speaker 1: the main predators that they're closing their shells for protection 245 00:13:47,220 --> 00:13:50,680 Speaker 1: against are sea stars, which are quite a threat to 246 00:13:50,720 --> 00:13:56,040 Speaker 1: a number of coral reef-dwelling organisms. But they themselves are 247 00:13:56,140 --> 00:14:00,550 Speaker 1: also slow-moving creatures. So for this very specific encounter, The 248 00:14:00,610 --> 00:14:03,910 Speaker 1: closing of the shell is actually pretty fast, but it's 249 00:14:03,950 --> 00:14:06,290 Speaker 1: as fast as it needs to be. And it's not 250 00:14:06,710 --> 00:14:07,970 Speaker 1: man catching fast. 251 00:14:09,250 --> 00:14:11,330 Speaker 3: Yes. And the other thing you mentioned is they often 252 00:14:11,570 --> 00:14:15,070 Speaker 3: don't close their shells completely because you will still see 253 00:14:15,110 --> 00:14:17,929 Speaker 3: some of the flesh of the clam kind of protruding. 254 00:14:17,970 --> 00:14:21,229 Speaker 3: Like they've got to both expel water and retract their 255 00:14:21,290 --> 00:14:23,990 Speaker 3: tissues inside in order to close. 256 00:14:24,370 --> 00:14:29,710 Speaker 1: Exactly. Now, the varied colorization of the mantle tissues on 257 00:14:29,770 --> 00:14:34,990 Speaker 1: the giant clam is due to iridocyte cells that feed 258 00:14:35,090 --> 00:14:41,790 Speaker 1: light to symbiotic single-celled dinoflagellate algae, or zooxanthellae. And this 259 00:14:41,840 --> 00:14:43,900 Speaker 1: is where we get into the really cool example of 260 00:14:43,980 --> 00:14:49,600 Speaker 1: symbiosis going on here. The clam acquires these zooxanthellae via 261 00:14:49,700 --> 00:14:53,280 Speaker 1: constant filter feeding in the water. It also acquires very 262 00:14:53,340 --> 00:14:58,590 Speaker 1: basic platonic organisms that it actually eats. And thus, during 263 00:14:58,630 --> 00:15:00,470 Speaker 1: the day, the clam is going to open wide and 264 00:15:00,530 --> 00:15:04,330 Speaker 1: extend its mantle tissue to absorb the sunlight necessary for 265 00:15:04,350 --> 00:15:07,480 Speaker 1: the algae to conduct photosynthesis. And in return, the algae 266 00:15:07,520 --> 00:15:10,120 Speaker 1: produce sugars and proteins that the clam needs to survive, 267 00:15:10,660 --> 00:15:14,340 Speaker 1: along with its more traditional filtered diet, which it requires 268 00:15:14,460 --> 00:15:18,120 Speaker 1: less of. So the giant clam has a dual feeding strategy, 269 00:15:18,700 --> 00:15:20,950 Speaker 1: and this is thought to have evolved some 64 million 270 00:15:20,970 --> 00:15:21,420 Speaker 1: years ago. 271 00:15:21,710 --> 00:15:24,930 Speaker 3: Yeah, two different ways of eating. It is photosynthesizing with 272 00:15:24,950 --> 00:15:28,340 Speaker 3: the help of these organisms that it has absorbed and 273 00:15:28,360 --> 00:15:31,280 Speaker 3: taken into itself. And then it's also filter feeding. It's 274 00:15:31,360 --> 00:15:34,060 Speaker 3: sucking through water and filtering out little bits that it 275 00:15:34,100 --> 00:15:34,479 Speaker 3: can eat. 276 00:15:34,900 --> 00:15:38,300 Speaker 1: Yeah. And and so that's that's one of the interesting 277 00:15:38,380 --> 00:15:41,420 Speaker 1: observations you can make as you like snorkel over them 278 00:15:41,520 --> 00:15:44,110 Speaker 1: is like that mantle tissue is like it really seems 279 00:15:44,170 --> 00:15:48,150 Speaker 1: engorged and very out there because because it is it 280 00:15:48,330 --> 00:15:53,690 Speaker 1: is collecting sunlight. And yeah, so fascinating that it has 281 00:15:53,730 --> 00:15:57,830 Speaker 1: this dual feeding strategy. The giant clam also boasts thousands 282 00:15:57,870 --> 00:16:00,900 Speaker 1: of pinhole eye spots along the mantle's edge that allow 283 00:16:00,940 --> 00:16:04,080 Speaker 1: it to detect changes in light. Not only the cycles 284 00:16:04,140 --> 00:16:08,000 Speaker 1: of night and day, but also telltale shadows of approaching predators. 285 00:16:09,320 --> 00:16:12,770 Speaker 1: And so this gets into the observation that I had 286 00:16:12,830 --> 00:16:16,990 Speaker 1: as I was snorkeling over, again, the smaller of the giant's. 287 00:16:17,490 --> 00:16:20,430 Speaker 1: they would sometimes like tense up a little bit. They 288 00:16:20,450 --> 00:16:21,930 Speaker 1: wouldn't close all the way, but it would be like 289 00:16:21,970 --> 00:16:25,610 Speaker 1: a visual like rippling or movement of the mantle tissue 290 00:16:25,710 --> 00:16:26,630 Speaker 1: and even the valves. 291 00:16:27,050 --> 00:16:29,450 Speaker 3: Yeah, yeah. And I've seen video of the same thing happening. 292 00:16:29,510 --> 00:16:31,750 Speaker 3: If you say you move your hand over the top 293 00:16:31,790 --> 00:16:34,090 Speaker 3: of one and cast a shadow over it, sometimes it 294 00:16:34,250 --> 00:16:36,450 Speaker 3: will kind of tense and partially close. 295 00:16:37,130 --> 00:16:40,050 Speaker 1: Which again, the logical mind knows that, you know, it 296 00:16:40,110 --> 00:16:43,510 Speaker 1: is just responding to the presence of another organism, which 297 00:16:43,590 --> 00:16:45,430 Speaker 1: may or may not be something that is a threat 298 00:16:45,470 --> 00:16:49,040 Speaker 1: to it. But you also can't help but illogically read 299 00:16:49,080 --> 00:16:52,740 Speaker 1: it as like little mouths that are kind of going 300 00:16:52,920 --> 00:16:57,300 Speaker 1: at you, you know. So, again, I think it's almost 301 00:16:57,360 --> 00:17:00,580 Speaker 1: impossible not to read them on additional levels as well. 302 00:17:00,840 --> 00:17:02,960 Speaker 3: Yeah. Well, I mean, I think the way to think 303 00:17:03,000 --> 00:17:05,159 Speaker 3: of it is that what you're seeing there is a 304 00:17:05,260 --> 00:17:08,379 Speaker 3: retracting impulse, not a biting impulse. Exactly. 305 00:17:08,470 --> 00:17:12,210 Speaker 1: Yeah. It is a retracting, not a biting. Because, yeah, 306 00:17:12,750 --> 00:17:15,850 Speaker 1: I think the other way we tend to read. artificially 307 00:17:15,869 --> 00:17:18,870 Speaker 1: think about them, and certainly in modern Looney Tunes sense, 308 00:17:18,910 --> 00:17:21,270 Speaker 1: is to think of them as a bear trap. And 309 00:17:21,310 --> 00:17:25,890 Speaker 1: we'll turn to some actual examples from 20th century cinema 310 00:17:25,950 --> 00:17:28,680 Speaker 1: that depicts them essentially as a bear trap, just waiting 311 00:17:28,720 --> 00:17:30,300 Speaker 1: down there for divers to pass through. 312 00:17:30,320 --> 00:17:30,700 Speaker 2: Yeah. 313 00:17:41,070 --> 00:17:44,910 Speaker 3: Before we get to 20th century cinema, there are older 314 00:17:45,010 --> 00:17:50,250 Speaker 3: stories of giant clams as various forms of monsters or 315 00:17:50,290 --> 00:17:54,639 Speaker 3: man killers. The giant clam has appeared in some myths 316 00:17:54,820 --> 00:17:59,080 Speaker 3: and legends of various peoples of the Pacific Islands, sometimes 317 00:17:59,359 --> 00:18:02,520 Speaker 3: as a benign creature, but sometimes as a dangerous or 318 00:18:02,560 --> 00:18:07,650 Speaker 3: monstrous creature. One interesting example I found is in a 319 00:18:08,150 --> 00:18:13,810 Speaker 3: Tuamotuan version of the story of the Polynesian hero Rata. 320 00:18:13,830 --> 00:18:16,990 Speaker 3: I can't remember if Rata's come up on the show before, 321 00:18:17,030 --> 00:18:21,190 Speaker 3: but Rata is basically a culture hero that you will 322 00:18:21,230 --> 00:18:26,600 Speaker 3: find throughout Polynesian storytelling in lots of different Pacific Island cultures. 323 00:18:26,680 --> 00:18:32,820 Speaker 3: There are Rata stories among the Maori, among Tahitians, Tuamotuans, 324 00:18:32,960 --> 00:18:36,790 Speaker 3: and others. sometimes with a different name, a slightly different 325 00:18:36,830 --> 00:18:41,710 Speaker 3: name in different regions. The Rada stories differ in many details, 326 00:18:41,810 --> 00:18:46,190 Speaker 3: but the most common elements are that he is a young, brave, 327 00:18:46,290 --> 00:18:49,650 Speaker 3: resourceful hero who has to go on a dangerous quest 328 00:18:49,869 --> 00:18:53,760 Speaker 3: to avenge the death of his father or to avenge 329 00:18:54,600 --> 00:18:58,760 Speaker 3: some other kind of crime against his family. And in 330 00:18:59,100 --> 00:19:02,180 Speaker 3: doing so, he has to build a mighty canoe, which 331 00:19:02,240 --> 00:19:06,040 Speaker 3: involves filling a tree protected by spirits or magical beings 332 00:19:06,100 --> 00:19:10,149 Speaker 3: of the forest. Sometimes in older English sources, these beings 333 00:19:10,210 --> 00:19:14,870 Speaker 3: are translated as elves or goblins. More recent sources, I think, 334 00:19:15,230 --> 00:19:19,130 Speaker 3: will call them things like forest spirits or something. But 335 00:19:20,170 --> 00:19:22,940 Speaker 3: once in this great canoe that he has made, Radha 336 00:19:22,960 --> 00:19:26,310 Speaker 3: has to go on a journey, sometimes with companions. to 337 00:19:26,430 --> 00:19:30,430 Speaker 3: avenge his family or avenge his father and battle terrifying 338 00:19:30,490 --> 00:19:34,399 Speaker 3: monsters along the way. And so in one version of 339 00:19:34,440 --> 00:19:37,580 Speaker 3: the Rata journey, I found one of those monsters he 340 00:19:37,640 --> 00:19:42,060 Speaker 3: fights is a giant clam. So this is a telling 341 00:19:42,340 --> 00:19:45,189 Speaker 3: of a version found among the Tuamotuan people of the 342 00:19:45,230 --> 00:19:50,010 Speaker 3: Tuamotu Islands and of Tahiti, told by a local scholar named... 343 00:19:50,600 --> 00:19:54,520 Speaker 3: Tarowi to a Mrs. Walker and compiled into a book 344 00:19:54,920 --> 00:19:58,980 Speaker 3: called Ancient Tahiti by the British Tahitian folklorist and scholar 345 00:19:59,350 --> 00:20:01,590 Speaker 3: Teoria Henry, who lived 1847 to 1915. So I'm going 346 00:20:01,619 --> 00:20:07,100 Speaker 3: to read the excerpt of the text. And of course, 347 00:20:07,119 --> 00:20:10,560 Speaker 3: I have to apologize in advance for any mispronunciations. I'll 348 00:20:10,580 --> 00:20:13,419 Speaker 3: do my best here. They were sailing on their course 349 00:20:13,460 --> 00:20:16,879 Speaker 3: when the great au, or swordfish, came into sight, and 350 00:20:16,940 --> 00:20:20,070 Speaker 3: Radha mistook it for land. But Teva said it was 351 00:20:20,190 --> 00:20:24,129 Speaker 3: not land, but another foe. So Radha stood prepared again 352 00:20:24,190 --> 00:20:26,950 Speaker 3: for battle, and when the monster approached the side of 353 00:20:26,990 --> 00:20:30,310 Speaker 3: the canoe, intending to pierce it, he killed it with 354 00:20:30,369 --> 00:20:34,430 Speaker 3: his spear and presented the body to the elves as before. Thus, 355 00:20:34,550 --> 00:20:38,090 Speaker 3: that demon was exterminated. and his flesh eaten by all. 356 00:20:38,790 --> 00:20:41,959 Speaker 3: They sailed on, and they met the great Urua, the 357 00:20:41,980 --> 00:20:45,959 Speaker 3: Kavala fish, which looked like land, but Teva told Radha 358 00:20:46,300 --> 00:20:48,800 Speaker 3: it was the Kavala fish sent by King Puna to 359 00:20:48,859 --> 00:20:52,399 Speaker 3: kill him. The fish darted forward to carry away Radha, 360 00:20:52,500 --> 00:20:55,280 Speaker 3: but he stood ready, and as soon as it approached him, 361 00:20:55,560 --> 00:20:58,040 Speaker 3: he thrust his spear into its throat and killed it, 362 00:20:58,380 --> 00:21:01,850 Speaker 3: and it was also eaten by all. Next they met 363 00:21:01,900 --> 00:21:06,250 Speaker 3: the great Pahuatutahi, a giant clam, which appeared like a 364 00:21:06,310 --> 00:21:09,460 Speaker 3: mountain looming up from the sea. But Teva said, it 365 00:21:09,840 --> 00:21:13,340 Speaker 3: is not land, it is the giant clam. And Rata 366 00:21:13,400 --> 00:21:16,840 Speaker 3: prepared for the inevitable encounter as his vessel was being 367 00:21:16,960 --> 00:21:20,580 Speaker 3: drawn up into it. The clam had opened its great 368 00:21:20,640 --> 00:21:23,860 Speaker 3: valves and was sucking in the waves upon which the canoe, 369 00:21:23,880 --> 00:21:27,590 Speaker 3: Tua Arata, was sailing. The lad stood at the bow 370 00:21:27,609 --> 00:21:29,990 Speaker 3: with his spear, and as soon as they reached the 371 00:21:30,050 --> 00:21:32,850 Speaker 3: center of the clam, he pierced it through its vital part, 372 00:21:33,300 --> 00:21:36,300 Speaker 3: severing its flesh from the shell so that it could 373 00:21:36,340 --> 00:21:39,379 Speaker 3: not close upon him. He presented the clam to his 374 00:21:39,440 --> 00:21:42,640 Speaker 3: spirit company to annihilate. And as soon as the canoe 375 00:21:42,680 --> 00:21:46,580 Speaker 3: was safely away, the dead clam sank into the deep sea. 376 00:21:48,240 --> 00:21:52,040 Speaker 3: So several interesting things here in the story. It sounds 377 00:21:52,119 --> 00:21:55,240 Speaker 3: like he's talking about cutting the adductor muscle, which is 378 00:21:55,290 --> 00:21:58,670 Speaker 3: something we see later when people are talking about how 379 00:21:58,710 --> 00:22:02,910 Speaker 3: to fight this clam. In this case, it says that Radha, 380 00:22:02,990 --> 00:22:05,010 Speaker 3: you know, he stabbed it at its vital part with 381 00:22:05,030 --> 00:22:08,570 Speaker 3: the spear, severing its flesh from the shell. And that 382 00:22:08,630 --> 00:22:11,770 Speaker 3: prevented the shell from closing, right? So it sounds like 383 00:22:11,810 --> 00:22:15,429 Speaker 3: he is saying he attacked the adductor muscle, which the 384 00:22:15,470 --> 00:22:19,149 Speaker 3: clam uses to close the shell. Another thing I want 385 00:22:19,170 --> 00:22:21,310 Speaker 3: to note here is that I think there could be 386 00:22:21,350 --> 00:22:25,330 Speaker 3: a temptation to take a story like this as evidence 387 00:22:25,490 --> 00:22:29,760 Speaker 3: that the storyteller or the storyteller's audience is would be 388 00:22:29,820 --> 00:22:34,680 Speaker 3: expected to believe that giant clams are actually dangerous, that 389 00:22:35,240 --> 00:22:38,520 Speaker 3: they will come and eat your boat or something. But 390 00:22:38,800 --> 00:22:41,419 Speaker 3: I'm not sure that's actually right. In this telling, the 391 00:22:41,460 --> 00:22:44,699 Speaker 3: giant clam is not only a giant clam, as in 392 00:22:44,760 --> 00:22:49,900 Speaker 3: a Tridacta gigas, it is a giant giant clam, described 393 00:22:49,980 --> 00:22:53,000 Speaker 3: as looming over the sea like a mountain and capable 394 00:22:53,040 --> 00:22:57,389 Speaker 3: of swallowing an entire canoe. So, To me, that doesn't 395 00:22:57,430 --> 00:23:01,520 Speaker 3: necessarily mean that the teller of the story wanted you 396 00:23:01,540 --> 00:23:06,180 Speaker 3: to get the idea that a regular-sized giant clam poses 397 00:23:06,240 --> 00:23:09,320 Speaker 3: a threat to human beings. Though that belief does appear 398 00:23:09,340 --> 00:23:12,480 Speaker 3: to be common enough around the world at different times. Maybe. 399 00:23:12,700 --> 00:23:14,960 Speaker 3: You can't rule it out either. But it might well 400 00:23:15,020 --> 00:23:18,300 Speaker 3: be that the clam in this story is only understood 401 00:23:18,340 --> 00:23:23,930 Speaker 3: as threatening because it is supernatural and monstrous and Leviathan-sized. 402 00:23:24,410 --> 00:23:27,950 Speaker 3: not because regular giant clams are a threat. After all, 403 00:23:28,100 --> 00:23:31,140 Speaker 3: the very next monster that Rata fights in the story 404 00:23:31,520 --> 00:23:35,200 Speaker 3: is a terrible demon bird that carried away Rata's parents 405 00:23:35,340 --> 00:23:39,480 Speaker 3: and swallowed his father's head. And this is presumably not 406 00:23:39,540 --> 00:23:42,300 Speaker 3: an indication of what the storyteller thought about the offensive 407 00:23:42,340 --> 00:23:45,550 Speaker 3: capabilities of regular seabirds. So I don't know that we 408 00:23:45,590 --> 00:23:49,270 Speaker 3: can actually draw from this story a belief that giant 409 00:23:49,330 --> 00:23:52,290 Speaker 3: clams would hurt you. It's just like, This is a 410 00:23:52,369 --> 00:23:55,370 Speaker 3: monster giant clam. It might be no different than when 411 00:23:55,450 --> 00:23:59,290 Speaker 3: we have Night of the Lepus, a movie about monster bunnies. Right. 412 00:23:59,350 --> 00:24:02,210 Speaker 1: If a bunny was that big, it would be a 413 00:24:02,330 --> 00:24:06,110 Speaker 1: threat to us just based on its mass. Similar to, 414 00:24:06,130 --> 00:24:08,070 Speaker 1: you know, we know that our house cat is not 415 00:24:08,250 --> 00:24:12,470 Speaker 1: actually a threat to our life in a direct sense. 416 00:24:13,850 --> 00:24:16,810 Speaker 1: But we can certainly engage in fantasies where it is 417 00:24:16,890 --> 00:24:20,469 Speaker 1: enlarged or we are shrunken and then that changes everything. 418 00:24:20,760 --> 00:24:20,990 Speaker 3: Right. 419 00:24:21,800 --> 00:24:25,380 Speaker 1: If a giant clam were supernaturally giant enough, it could 420 00:24:25,420 --> 00:24:27,570 Speaker 1: filter feed us. Exactly. Yeah. 421 00:24:27,630 --> 00:24:30,790 Speaker 3: I don't want to be filter fed or filter eaten. 422 00:24:30,810 --> 00:24:34,030 Speaker 1: Now, why was this monster's flesh not eaten by all, though? 423 00:24:34,050 --> 00:24:35,369 Speaker 1: That seems like a missed opportunity. 424 00:24:35,750 --> 00:24:37,850 Speaker 3: That's a really good question. I don't know the answer. 425 00:24:38,310 --> 00:24:42,600 Speaker 3: Anybody out there listening who's a scholar of Tuamotuan folklore 426 00:24:42,630 --> 00:24:45,399 Speaker 3: or who knows more about the Rata-Hero cycle, do you 427 00:24:45,420 --> 00:24:47,940 Speaker 3: have an idea? Why was the clam not eaten like 428 00:24:47,980 --> 00:24:48,660 Speaker 3: the other fish were? 429 00:24:49,280 --> 00:24:51,760 Speaker 1: I like a story where the people eat the monster. 430 00:24:51,800 --> 00:24:54,340 Speaker 1: We've encountered these sorts of stories before, and they seem 431 00:24:54,380 --> 00:24:57,800 Speaker 1: very practical. I mean, sometimes the monster's body is poisonous 432 00:24:57,859 --> 00:25:00,900 Speaker 1: by nature, and therefore, you know, it is left alone. 433 00:25:00,960 --> 00:25:03,800 Speaker 1: But I like a story where they're like, okay, let's 434 00:25:03,940 --> 00:25:04,980 Speaker 1: make use of this flesh. 435 00:25:05,220 --> 00:25:07,760 Speaker 3: And it's not just the hero. It's actually kind of heartwarming. 436 00:25:07,840 --> 00:25:10,000 Speaker 3: The hero kills the monster and then takes it back, 437 00:25:10,060 --> 00:25:11,200 Speaker 3: and it's eaten by all. 438 00:25:11,480 --> 00:25:15,180 Speaker 1: Yeah. You know, and speaking of giant clams, I'll also 439 00:25:15,240 --> 00:25:18,380 Speaker 1: refer listeners back to our episodes on the Fata Morgana. 440 00:25:19,540 --> 00:25:25,310 Speaker 1: This being a mirage, an optical illusion that is seen 441 00:25:25,350 --> 00:25:28,490 Speaker 1: at sea, which I did get to see an example 442 00:25:28,590 --> 00:25:34,310 Speaker 1: of when I was in Indonesia. But we discussed the 443 00:25:34,369 --> 00:25:38,050 Speaker 1: Chinese myths concerning the shin or chin, which is a 444 00:25:38,130 --> 00:25:41,150 Speaker 1: kind of giant clam, a giant, giant clam, to be sure, 445 00:25:41,190 --> 00:25:44,600 Speaker 1: a supernaturally giant clam. And this one, too, kind of 446 00:25:44,670 --> 00:25:47,470 Speaker 1: emerges from the water like a mountain. But it also 447 00:25:47,570 --> 00:25:53,480 Speaker 1: expels a fantastic phantasmagorical island, you know, that throws sailors 448 00:25:53,660 --> 00:25:55,919 Speaker 1: off and people sail towards it. And then they realize 449 00:25:55,960 --> 00:25:58,300 Speaker 1: too late that this was not a real place at all, 450 00:25:58,340 --> 00:26:02,550 Speaker 1: but just an illusion cast up by this giant, this 451 00:26:02,630 --> 00:26:04,230 Speaker 1: giant bivalve in the water. 452 00:26:04,609 --> 00:26:04,810 Speaker 2: Yeah. 453 00:26:05,750 --> 00:26:08,909 Speaker 1: But I don't believe it ever, you know, latched on 454 00:26:08,970 --> 00:26:11,859 Speaker 1: or ate anybody. So I kind of skipped over it 455 00:26:11,910 --> 00:26:13,020 Speaker 1: otherwise for this episode. 456 00:26:13,320 --> 00:26:13,520 Speaker 3: Yeah. 457 00:26:14,440 --> 00:26:18,120 Speaker 1: Now, coming back to modern myths of giant clams eating people, 458 00:26:19,760 --> 00:26:23,640 Speaker 1: I want to read an excerpt from Charles Frederick Holder. 459 00:26:23,760 --> 00:26:28,699 Speaker 1: He was an American naturalist and conservationist. And he had 460 00:26:28,720 --> 00:26:32,959 Speaker 1: a book in 1885 titled Elements of Zoology. And this is, 461 00:26:33,160 --> 00:26:35,440 Speaker 1: I'm to understand otherwise for the time period, a very 462 00:26:35,480 --> 00:26:39,119 Speaker 1: well-regarded work. So this is, again, not an example of 463 00:26:39,660 --> 00:26:44,620 Speaker 1: outrageous fiction. It is not an example of mythology or folklore. Just, 464 00:26:44,640 --> 00:26:48,179 Speaker 1: you know, an attempt to present biological facts about the 465 00:26:48,220 --> 00:26:52,840 Speaker 1: natural world. And in it, he writes, quote, so powerful 466 00:26:52,900 --> 00:26:55,760 Speaker 1: are they that large sharks and rays that have accidentally 467 00:26:55,859 --> 00:27:00,660 Speaker 1: crossed them have been seized and held. That already gives 468 00:27:00,700 --> 00:27:03,350 Speaker 1: us a lot to play with. First of all, crossed them, 469 00:27:03,420 --> 00:27:05,590 Speaker 1: I think, just means has come close to them. I 470 00:27:05,609 --> 00:27:08,649 Speaker 1: don't think this is like a vendetta situation he's describing here. 471 00:27:09,030 --> 00:27:09,210 Speaker 2: Right. 472 00:27:09,930 --> 00:27:12,889 Speaker 1: He goes on to state that the Tridacna always harbors 473 00:27:12,930 --> 00:27:17,960 Speaker 1: within its shell several crabs. I actually couldn't find out 474 00:27:18,060 --> 00:27:20,140 Speaker 1: much about this other than to say that, yeah, you 475 00:27:20,200 --> 00:27:23,880 Speaker 1: will find lots of animals living around and even among 476 00:27:23,900 --> 00:27:27,570 Speaker 1: the valves of a clam like this. And then he 477 00:27:27,650 --> 00:27:31,850 Speaker 1: also points out that the bysis, this is the substance 478 00:27:32,130 --> 00:27:37,290 Speaker 1: that sticks the clam to the rock, is, quote, so 479 00:27:37,369 --> 00:27:39,469 Speaker 1: large that it can only be cut with a hatchet. 480 00:27:40,000 --> 00:27:41,300 Speaker 1: And then he goes on to point out that eight 481 00:27:41,359 --> 00:27:44,580 Speaker 1: species are known. So still, the idea that the clam 482 00:27:44,619 --> 00:27:49,359 Speaker 1: will latch on to creatures in its vicinity, including sharks 483 00:27:49,400 --> 00:27:53,520 Speaker 1: and rays, which, as we've discussed, are very agile creatures 484 00:27:53,580 --> 00:27:56,900 Speaker 1: that are not certain. I mean, it's one thing to 485 00:27:57,160 --> 00:28:00,580 Speaker 1: even make the claim, well, that a flimsy human snorkeler 486 00:28:00,600 --> 00:28:02,740 Speaker 1: or diver might get trapped by one of these things. 487 00:28:02,800 --> 00:28:04,820 Speaker 1: But it's quite another to imagine a shark or a 488 00:28:04,880 --> 00:28:07,240 Speaker 1: ray being grabbed by something like this. 489 00:28:08,270 --> 00:28:10,030 Speaker 3: Yeah, but that's not going to stop you from telling 490 00:28:10,050 --> 00:28:13,369 Speaker 3: a good story. I mean, so there are lots of 491 00:28:13,470 --> 00:28:17,250 Speaker 3: perpetuators of the myth of the killer clam in the 492 00:28:17,690 --> 00:28:21,660 Speaker 3: 20th century. I came across many, many things here that 493 00:28:21,700 --> 00:28:25,340 Speaker 3: we can discuss. One great example of the idea that 494 00:28:25,760 --> 00:28:29,360 Speaker 3: giant clams were dangerous appears in a very short article 495 00:28:30,119 --> 00:28:34,570 Speaker 3: that was reprinted throughout the publishing world. originally in the 496 00:28:34,609 --> 00:28:39,430 Speaker 3: magazine Popular Mechanics in May 1924. This was volume 41, 497 00:28:39,430 --> 00:28:43,650 Speaker 3: number 5. I saw a vague reference to this in 498 00:28:43,710 --> 00:28:45,690 Speaker 3: another article, and I had to go dig up the 499 00:28:45,750 --> 00:28:48,330 Speaker 3: original text. And I'm glad I did, by the way, 500 00:28:48,370 --> 00:28:53,930 Speaker 3: because this entire issue of Popular Mechanics is hilarious. This 501 00:28:54,010 --> 00:28:56,110 Speaker 3: is sort of a digression from The Clams, but I 502 00:28:56,170 --> 00:28:58,880 Speaker 3: have to discuss a few highlights from this 1924 pop mech. 503 00:28:58,920 --> 00:29:05,980 Speaker 3: One headline says, tear gas in police clubs to foil bandits. 504 00:29:09,300 --> 00:29:12,400 Speaker 3: The article claims that it is impossible to remain within 505 00:29:12,400 --> 00:29:15,750 Speaker 3: 10 feet after the gas is released. So it says, 506 00:29:15,810 --> 00:29:18,090 Speaker 3: you know, you hit the bandit with your mace or 507 00:29:18,150 --> 00:29:21,170 Speaker 3: billy and it releases the tear gas. And I was like, 508 00:29:21,990 --> 00:29:24,920 Speaker 3: what about the person hitting with it? I guess they 509 00:29:24,960 --> 00:29:26,160 Speaker 3: have to be wearing a gas mask. 510 00:29:26,280 --> 00:29:28,060 Speaker 1: Yeah, I guess they just have to be gas masked 511 00:29:28,140 --> 00:29:29,620 Speaker 1: up from the get go. What? 512 00:29:29,800 --> 00:29:34,209 Speaker 3: It's in the club. It was inside the club. The 513 00:29:34,310 --> 00:29:39,930 Speaker 3: other thing is the headline baking as cure for dog ills. 514 00:29:40,240 --> 00:29:43,680 Speaker 3: is tried in germany and rob here's a illustration for 515 00:29:43,720 --> 00:29:45,940 Speaker 3: you to look at well not a photo of a 516 00:29:45,980 --> 00:29:48,840 Speaker 3: guy who's got a dog and it's just labeled dog 517 00:29:48,880 --> 00:29:52,620 Speaker 3: being baked in gas oven now i i have to 518 00:29:52,660 --> 00:29:55,030 Speaker 3: clear it's not saying that you bake it at like 519 00:29:55,110 --> 00:29:57,770 Speaker 3: cooking temperatures i think it's just like Kind of like 520 00:29:57,810 --> 00:30:00,050 Speaker 3: a steam bath. It's like very warm in there. 521 00:30:00,170 --> 00:30:02,410 Speaker 1: Like a cartoon steam bath where you would have a 522 00:30:02,430 --> 00:30:05,250 Speaker 1: cartoon character get in and only their head sticking out. 523 00:30:05,330 --> 00:30:08,030 Speaker 1: That's exactly what they're doing to this dog. That headline 524 00:30:08,530 --> 00:30:11,180 Speaker 1: really is a roller coaster because when I first read it, 525 00:30:11,230 --> 00:30:12,880 Speaker 1: I was like, oh, well, that's kind of nice. You're 526 00:30:12,930 --> 00:30:15,980 Speaker 1: baking for the dog. You're making little cookies or, you know, 527 00:30:16,020 --> 00:30:19,460 Speaker 1: little treats. But no, this dude has a metal contraption 528 00:30:19,480 --> 00:30:21,940 Speaker 1: that this dog's body is stuck in. 529 00:30:22,940 --> 00:30:25,480 Speaker 3: So this poor dog's just looking like I'm very hot. 530 00:30:25,960 --> 00:30:26,100 Speaker 1: Yeah. 531 00:30:27,950 --> 00:30:36,370 Speaker 3: Another one. Here's a headline. 40-pound cigar is valued at $ 75. 532 00:30:34,770 --> 00:30:37,690 Speaker 3: What is said to be one of the largest cigars 533 00:30:37,830 --> 00:30:41,350 Speaker 3: ever made, one of the largest, was shown at an 534 00:30:41,490 --> 00:30:46,110 Speaker 3: Eastern Tobacco Exposition. And it goes on to not really 535 00:30:46,150 --> 00:30:48,719 Speaker 3: say anything else except that it's valued at $ 75. It 536 00:30:48,760 --> 00:30:51,680 Speaker 3: does not answer the question, did anybody smoke it? 537 00:30:54,280 --> 00:30:57,560 Speaker 1: And it's so weird looking at these because my grandfather 538 00:30:57,680 --> 00:31:00,930 Speaker 1: in the, I guess this was in the 80s and 90s, 539 00:31:01,040 --> 00:31:04,140 Speaker 1: he always had copies of Popular Mechanics and Popular Science 540 00:31:04,200 --> 00:31:07,350 Speaker 1: sitting around. And I would look through them as a kid. And, 541 00:31:08,280 --> 00:31:11,810 Speaker 1: you know, these felt like they were accurately depicting the future. 542 00:31:11,850 --> 00:31:15,090 Speaker 1: There are always articles about, you know, new gadgets, new 543 00:31:15,190 --> 00:31:20,110 Speaker 1: upcoming technologies. So it's quite a trip to explore these 544 00:31:20,590 --> 00:31:22,610 Speaker 1: previous stories in Popular Mechanics. 545 00:31:23,050 --> 00:31:27,450 Speaker 3: Skeptical editorial standards might have been improving as the decades 546 00:31:27,490 --> 00:31:32,130 Speaker 3: went on, maybe. Anyway, on to clams. So in this 547 00:31:32,190 --> 00:31:37,430 Speaker 3: wacky Popular Mechanics, there's one article titled, Giant Clams Trap 548 00:31:37,470 --> 00:31:41,450 Speaker 3: Sea Divers in Grip of Shells. It's a very short article, 549 00:31:41,510 --> 00:31:44,830 Speaker 3: so I can read it in full. It says, Shells 550 00:31:44,970 --> 00:31:48,590 Speaker 3: of huge clams found off the coast of Papua often 551 00:31:48,650 --> 00:31:52,870 Speaker 3: weigh more than 400 pounds. Divers who accidentally step into 552 00:31:52,910 --> 00:31:56,530 Speaker 3: the open lips of the monsters are not infrequently held 553 00:31:56,570 --> 00:32:00,230 Speaker 3: with such force that they cannot release themselves and are drowned. 554 00:32:00,870 --> 00:32:03,990 Speaker 3: The shells close with such force that they serve as 555 00:32:04,070 --> 00:32:08,010 Speaker 3: gigantic traps. That's the whole article, except for there's a 556 00:32:08,130 --> 00:32:11,500 Speaker 3: photo of a giant clam. And we see the characteristic, 557 00:32:11,740 --> 00:32:14,640 Speaker 3: you know, shell with the wavy line of the mouth. 558 00:32:15,760 --> 00:32:19,120 Speaker 3: And the caption is, Giant clam in coral reef off 559 00:32:19,200 --> 00:32:22,700 Speaker 3: New Guinea. Powerful crushing lips partly open. 560 00:32:23,820 --> 00:32:26,640 Speaker 1: The interesting thing here is though it's described as partly open, 561 00:32:27,100 --> 00:32:30,050 Speaker 1: this is actually probably a situation where they're as closed 562 00:32:30,090 --> 00:32:31,070 Speaker 1: as they are going to get. 563 00:32:31,410 --> 00:32:31,690 Speaker 3: Yes. 564 00:32:32,650 --> 00:32:35,170 Speaker 1: And they're describing giant clams, by the way, in exactly 565 00:32:35,210 --> 00:32:37,710 Speaker 1: the area that I was snorkeling in. 566 00:32:38,070 --> 00:32:41,620 Speaker 3: Oh, that's funny. Now, the text of this Popular Mechanics 567 00:32:41,680 --> 00:32:45,830 Speaker 3: article seems to have been reproduced in newspapers and other 568 00:32:45,940 --> 00:32:48,690 Speaker 3: publications in the 1920s. So it seems kind of like 569 00:32:48,710 --> 00:32:52,410 Speaker 3: this story really got around in the following decades, including 570 00:32:52,470 --> 00:32:57,370 Speaker 3: in various bits of pop culture. This exact clam trap 571 00:32:57,410 --> 00:33:01,480 Speaker 3: scenario is depicted in a scene from a 1948 adventure 572 00:33:01,540 --> 00:33:05,440 Speaker 3: film called Wake of the Red Witch, starring John Wayne 573 00:33:05,480 --> 00:33:09,700 Speaker 3: himself and Gail Russell. Rob, I put in a link 574 00:33:09,740 --> 00:33:11,160 Speaker 3: for you to look at the scene if you want. 575 00:33:11,400 --> 00:33:13,420 Speaker 3: It's actually, I don't know, it's not that remarkable as 576 00:33:13,460 --> 00:33:15,260 Speaker 3: a scene, and it's really hard to see what's going 577 00:33:15,400 --> 00:33:19,120 Speaker 3: on in the underwater photography. It's very murky. Basically, the 578 00:33:19,160 --> 00:33:22,470 Speaker 3: movie is a revenge story about this deadly feud over 579 00:33:22,510 --> 00:33:26,050 Speaker 3: a woman between a bitter ship captain, played by John Wayne, 580 00:33:26,530 --> 00:33:30,030 Speaker 3: and a wealthy shipping company owner, played by Luther Adler. 581 00:33:30,050 --> 00:33:33,020 Speaker 3: I haven't seen the movie in full, but yeah, I 582 00:33:33,060 --> 00:33:35,690 Speaker 3: found a clip of this clam scene. Basically, a kid 583 00:33:35,730 --> 00:33:39,290 Speaker 3: goes diving. He accidentally sticks his leg into a tridacna 584 00:33:39,350 --> 00:33:43,110 Speaker 3: clam shell. The shell slams shut and traps him by 585 00:33:43,150 --> 00:33:46,010 Speaker 3: the ankle. And then John Wayne has to dive down 586 00:33:46,070 --> 00:33:47,990 Speaker 3: and do battle with the clam to get it to 587 00:33:48,040 --> 00:33:51,700 Speaker 3: release the kid. He succeeds by, with the kid's foot 588 00:33:51,780 --> 00:33:54,480 Speaker 3: still inside the shell, by the way, by John Wayne, 589 00:33:54,520 --> 00:33:57,280 Speaker 3: he stabs into the gap in the clam's shell with 590 00:33:57,320 --> 00:34:00,100 Speaker 3: some kind of spear or almost looks like a glaive. 591 00:34:01,360 --> 00:34:03,300 Speaker 3: And I was like, he's going to stab the foot, 592 00:34:03,440 --> 00:34:04,520 Speaker 3: but the kid's okay. 593 00:34:05,050 --> 00:34:06,950 Speaker 1: This shell in this movie, by the way, it looks 594 00:34:06,990 --> 00:34:09,810 Speaker 1: like a giant aquarium clam, you know, the kind of 595 00:34:09,830 --> 00:34:13,920 Speaker 1: little clam shell that opens and closes in your standard aquarium. 596 00:34:13,940 --> 00:34:14,680 Speaker 3: The plastic one, yeah. 597 00:34:14,739 --> 00:34:16,980 Speaker 1: It's like that. It looks like it's made out of 598 00:34:17,160 --> 00:34:20,440 Speaker 1: plastic or something like plastic. And also like no visible, 599 00:34:20,680 --> 00:34:23,939 Speaker 1: or at least I didn't see any visible mantle tissue either. 600 00:34:24,540 --> 00:34:29,169 Speaker 3: Another great example I found from popular culture is Superman 601 00:34:29,230 --> 00:34:33,860 Speaker 3: versus giant clam. There are actually several instances of this. Uh, 602 00:34:33,989 --> 00:34:37,180 Speaker 3: the theme that is usually emphasized is like, wow, Superman 603 00:34:37,260 --> 00:34:40,140 Speaker 3: is so strong. He can even pry apart the jaws 604 00:34:40,200 --> 00:34:44,200 Speaker 3: of the killer claim that would take a mightiness born 605 00:34:44,420 --> 00:34:47,960 Speaker 3: only of his Kryptonian blood interacting with our yellow sun. Uh, 606 00:34:48,890 --> 00:34:51,890 Speaker 3: so the main example I came across is that Superman 607 00:34:51,989 --> 00:34:55,489 Speaker 3: fights giant clams in one arc of the adventures of 608 00:34:55,550 --> 00:34:59,220 Speaker 3: Superman radio serial. This was a, I think it was 609 00:34:59,239 --> 00:35:02,790 Speaker 3: a six episode series called The Curse of Dead Man's Island, 610 00:35:02,830 --> 00:35:07,489 Speaker 3: which ran from September to October 1940. And in this encounter, 611 00:35:07,510 --> 00:35:11,520 Speaker 3: they're on a mysterious island and Jimmy Olsen and another 612 00:35:11,560 --> 00:35:15,200 Speaker 3: character are swimming to shore after their motorboat has been wrecked. 613 00:35:15,840 --> 00:35:20,520 Speaker 3: and they get attacked by a swarm of fast-moving giant clams. 614 00:35:20,620 --> 00:35:20,960 Speaker 1: What? 615 00:35:21,219 --> 00:35:24,120 Speaker 3: Yeah, these clams, they not only clamp down and trap you, 616 00:35:24,160 --> 00:35:26,380 Speaker 3: they actively chase you is what it sounds like. I 617 00:35:26,700 --> 00:35:28,540 Speaker 3: don't remember the exact wording, but it's like, they're coming 618 00:35:28,600 --> 00:35:29,259 Speaker 3: right for us. 619 00:35:29,340 --> 00:35:30,840 Speaker 1: They're like wind-up chattery teeth. 620 00:35:32,020 --> 00:35:33,930 Speaker 3: Can we get a sample of this, JJ? 621 00:35:33,950 --> 00:35:39,010 Speaker 1: Good thing the water's clear. 622 00:35:39,110 --> 00:35:40,770 Speaker 2: I've got to work fast before Edward drowns. 623 00:35:40,790 --> 00:35:42,710 Speaker 1: Gotta wrench the shells apart and free his foot. 624 00:35:46,120 --> 00:35:47,500 Speaker 2: Scott, these things are powerful. 625 00:35:48,260 --> 00:35:48,620 Speaker 1: Oh, wow. 626 00:35:49,320 --> 00:35:51,620 Speaker 3: Only the man of steel has hands strong enough to 627 00:35:51,780 --> 00:35:54,609 Speaker 3: wrench apart the deadly Moleskine grip. And I love how 628 00:35:54,630 --> 00:35:57,870 Speaker 3: you can hear Superman like grunting and groaning and saying, great, Scott, 629 00:35:57,930 --> 00:36:02,390 Speaker 3: these things are powerful. And then there are also some 630 00:36:02,800 --> 00:36:05,939 Speaker 3: some visual like Superman comics where he has to fight 631 00:36:05,980 --> 00:36:08,680 Speaker 3: a giant clam. There's one I actually was not able 632 00:36:08,719 --> 00:36:11,469 Speaker 3: to figure out what. issue this is from, so I 633 00:36:11,510 --> 00:36:13,630 Speaker 3: can't say, but I found it just like a clip 634 00:36:13,710 --> 00:36:15,810 Speaker 3: on Google image searches where it looks like it's a 635 00:36:15,950 --> 00:36:18,950 Speaker 3: silver age Superman who is having to, he gets his 636 00:36:19,050 --> 00:36:21,290 Speaker 3: own foot stuck in a giant clams mouth and he 637 00:36:21,330 --> 00:36:23,650 Speaker 3: has to like shoot it with his eye lasers. 638 00:36:24,410 --> 00:36:26,740 Speaker 1: And this is another example of the, the comic book 639 00:36:26,780 --> 00:36:30,900 Speaker 1: giant clam is more horizontal positioning as opposed to vertical. 640 00:36:31,200 --> 00:36:31,379 Speaker 2: Yeah. 641 00:36:32,000 --> 00:36:35,810 Speaker 1: Uh, you mentioned, uh, that, that film from 1948. I 642 00:36:35,870 --> 00:36:39,489 Speaker 1: ran across another film from 1948 that also features pretty 643 00:36:39,530 --> 00:36:43,129 Speaker 1: much the same giant clam gag. And that's the film 644 00:36:43,130 --> 00:36:47,989 Speaker 1: 16 Fathoms Deep. This one starred Lloyd Bridges as well 645 00:36:48,140 --> 00:36:49,590 Speaker 1: as Lon Chaney Jr. 646 00:36:50,219 --> 00:36:52,219 Speaker 3: This one has a lot of narration. I don't know 647 00:36:52,260 --> 00:36:54,460 Speaker 3: who's narrating, but I watched the scene you sent me 648 00:36:54,480 --> 00:36:56,940 Speaker 3: and like it's the exact same thing. A kid goes swimming. 649 00:36:57,280 --> 00:36:59,819 Speaker 3: Clam bites his leg. Somebody has to swim down and 650 00:36:59,860 --> 00:37:02,489 Speaker 3: rescue him. Though it looks a lot easier this time. 651 00:37:02,510 --> 00:37:05,330 Speaker 3: The person who swims down and rescues the kid and 652 00:37:05,350 --> 00:37:06,690 Speaker 3: the clam just kind of pulls him out. 653 00:37:06,710 --> 00:37:08,989 Speaker 1: Yeah, he just goes down and negotiates the situation. 654 00:37:09,320 --> 00:37:23,000 Speaker 3: That's right. Now, all this 20th century killer clam stuff, 655 00:37:23,900 --> 00:37:27,939 Speaker 3: when you look into it, it's not like really claims 656 00:37:28,040 --> 00:37:32,420 Speaker 3: based on anything specific. There are Claims that are supposed 657 00:37:32,480 --> 00:37:35,620 Speaker 3: to be authentic, but they're just vague generalizations. And then 658 00:37:35,680 --> 00:37:39,879 Speaker 3: there's also pop culture. But are there any actual specific 659 00:37:40,140 --> 00:37:44,480 Speaker 3: firsthand accounts of giant clam attacks in the 20th century? 660 00:37:45,400 --> 00:37:48,500 Speaker 3: There's one main one, though it will come with some 661 00:37:48,580 --> 00:37:52,779 Speaker 3: major caveats. So a lot of these stories seem to 662 00:37:52,840 --> 00:37:57,890 Speaker 3: trace back to a figure named Wilburn Dowell Cobb, an 663 00:37:57,950 --> 00:38:01,470 Speaker 3: American who wrote an article called The Pearl of Allah 664 00:38:02,200 --> 00:38:08,860 Speaker 3: in the November 1939 edition of Natural History magazine. Cobb was, 665 00:38:09,080 --> 00:38:11,660 Speaker 3: at the time he wrote this article, the owner of 666 00:38:11,860 --> 00:38:16,980 Speaker 3: a massive clam pearl. And I'm not fully up on 667 00:38:17,000 --> 00:38:19,799 Speaker 3: this distinction, but I know gemologists make some kind of 668 00:38:19,840 --> 00:38:22,680 Speaker 3: distinction between clam pearls and some other kind of pearls. 669 00:38:22,760 --> 00:38:25,430 Speaker 3: I I'm to understand that this thing is huge enough 670 00:38:25,469 --> 00:38:29,469 Speaker 3: to be considered really, you know, notable and valuable, but 671 00:38:29,550 --> 00:38:32,569 Speaker 3: that generally clam pearls are not as prized as like 672 00:38:32,630 --> 00:38:36,820 Speaker 3: the iridescent kinds of pearls you might get from pearl oysters. Right. 673 00:38:36,860 --> 00:38:40,120 Speaker 1: That's my understanding as well. The composition is different. Yeah. 674 00:38:40,540 --> 00:38:43,780 Speaker 3: But Cobb was the owner of this gigantic clam pearl. 675 00:38:44,160 --> 00:38:47,560 Speaker 3: He originally called it the Pearl of Allah. He later 676 00:38:47,640 --> 00:38:51,960 Speaker 3: renamed it the Pearl of Lao Tzu. which at the 677 00:38:52,000 --> 00:38:54,920 Speaker 3: time this article was written, this pearl was advertised as 678 00:38:55,020 --> 00:38:59,970 Speaker 3: the largest pearl ever found in nature. Cobb claimed that 679 00:39:00,070 --> 00:39:03,670 Speaker 3: he acquired it as a gift from a pearl-diving family 680 00:39:03,810 --> 00:39:08,710 Speaker 3: in the Philippine province of Palawan in 1934. And so 681 00:39:08,750 --> 00:39:12,589 Speaker 3: his story goes like this. Again, after this, I'm going 682 00:39:12,610 --> 00:39:14,319 Speaker 3: to come back with some reasons for doubting this, but 683 00:39:14,340 --> 00:39:16,960 Speaker 3: this is what he says. He says that he was 684 00:39:17,020 --> 00:39:21,800 Speaker 3: visiting a small Dayak village fishing village on an archaeological 685 00:39:21,860 --> 00:39:25,470 Speaker 3: expedition with some companions. Now I was a little confused 686 00:39:25,530 --> 00:39:27,989 Speaker 3: about the terminology he was using to refer to the 687 00:39:28,030 --> 00:39:31,140 Speaker 3: people here because from what I understood the term Dayak 688 00:39:31,239 --> 00:39:34,240 Speaker 3: is usually used to refer to the largest ethnic group 689 00:39:34,300 --> 00:39:38,580 Speaker 3: in Borneo, not to the people of Palawan. I'm not 690 00:39:38,620 --> 00:39:42,319 Speaker 3: sure what accounts for this. But anyway, he says one 691 00:39:42,380 --> 00:39:46,360 Speaker 3: night he was awakened by a great commotion, and it 692 00:39:46,440 --> 00:39:50,400 Speaker 3: seemed to be a funeral dirge. Cobb's guide explained that 693 00:39:50,460 --> 00:39:53,840 Speaker 3: his own son, who was the village chief Bog Tong, 694 00:39:54,280 --> 00:39:58,120 Speaker 3: had organized a dive to collect conch shells, which the 695 00:39:58,160 --> 00:40:02,620 Speaker 3: villagers planned to trade at market for some much-needed new 696 00:40:02,739 --> 00:40:06,819 Speaker 3: fishing equipment. But after several dives, Bog Tong realized one 697 00:40:06,840 --> 00:40:10,910 Speaker 3: of his best divers, a man named Etem, was missing. 698 00:40:11,469 --> 00:40:14,350 Speaker 3: And then here I'm going to read from Cobb's article. 699 00:40:14,770 --> 00:40:18,810 Speaker 3: He writes, quote, Suspecting a giant octopus, they unsheathed their 700 00:40:18,850 --> 00:40:22,049 Speaker 3: knives and, as one, dove down in search of their 701 00:40:22,090 --> 00:40:26,370 Speaker 3: missing comrade. On the fourth dive, they found Etem already dead. 702 00:40:27,090 --> 00:40:29,489 Speaker 3: In his search for conch shells, he had failed to 703 00:40:29,570 --> 00:40:33,250 Speaker 3: see the giant tridacna clam, which was partly hidden by 704 00:40:33,330 --> 00:40:37,299 Speaker 3: coral rocks. Its huge jaws held open, ready to clamp 705 00:40:37,380 --> 00:40:41,900 Speaker 3: shut with the strength of a bear trap. Etem accidentally 706 00:40:41,940 --> 00:40:45,930 Speaker 3: got his hand between the shells, which snapped shut. and 707 00:40:45,989 --> 00:40:49,110 Speaker 3: thus he met his death. With the aid of ropes, 708 00:40:49,550 --> 00:40:53,320 Speaker 3: the men hoisted their dead comrade and his deep-sea murderer 709 00:40:53,760 --> 00:40:55,180 Speaker 3: into one of their canoes. 710 00:40:55,600 --> 00:41:00,040 Speaker 1: Deep-sea murderer. Again, these are generally found in coral reef environments. 711 00:41:00,600 --> 00:41:00,799 Speaker 2: Right. 712 00:41:01,440 --> 00:41:05,460 Speaker 3: So Cobb claims that this clam, which was brought ashore, 713 00:41:05,900 --> 00:41:10,460 Speaker 3: was later revealed to contain a gigantic pearl. And the 714 00:41:10,500 --> 00:41:14,410 Speaker 3: pearl was first claimed by a local Muslim chieftain but 715 00:41:14,489 --> 00:41:17,720 Speaker 3: then given to Cobb as a gift after Cobb managed 716 00:41:17,780 --> 00:41:21,419 Speaker 3: to save the chief's son from a deadly illness. Again, 717 00:41:21,460 --> 00:41:26,340 Speaker 3: this is all his own account. So there is at 718 00:41:26,420 --> 00:41:30,969 Speaker 3: least a firsthand account of a giant clam snapping down 719 00:41:31,050 --> 00:41:34,150 Speaker 3: on somebody and drowning them. And the pearl itself is 720 00:41:34,230 --> 00:41:37,470 Speaker 3: actually real, but the story of where it came from, 721 00:41:37,489 --> 00:41:41,330 Speaker 3: that has met with intense scrutiny from later reviewers and 722 00:41:41,980 --> 00:41:44,200 Speaker 3: I didn't have time to chase down all of the 723 00:41:44,219 --> 00:41:48,820 Speaker 3: different investigations of this. There have been several. But it 724 00:41:48,860 --> 00:41:52,680 Speaker 3: seems that multiple later articles point out serious reasons for 725 00:41:52,719 --> 00:41:56,890 Speaker 3: doubting the story, including the fact that Cobb changed major 726 00:41:56,930 --> 00:42:00,950 Speaker 3: details of the story over time. There was no corroborating 727 00:42:01,010 --> 00:42:05,150 Speaker 3: evidence or documentation of this from the Philippines. And frankly, 728 00:42:05,210 --> 00:42:08,210 Speaker 3: while this is just subjective and doesn't really bear any 729 00:42:08,350 --> 00:42:11,860 Speaker 3: evidential weight, I have to say... Just because I noticed 730 00:42:11,910 --> 00:42:15,279 Speaker 3: it myself, if you read Cobb's article, it has a 731 00:42:15,440 --> 00:42:19,540 Speaker 3: fabulous texture in the prose. It reads like a guy 732 00:42:19,640 --> 00:42:22,240 Speaker 3: making up a story to make himself sound cool. 733 00:42:22,260 --> 00:42:26,379 Speaker 1: Yeah, it sounds a little carny. It sounds very much 734 00:42:26,440 --> 00:42:28,960 Speaker 1: like someone selling the lore of the thing he is 735 00:42:29,100 --> 00:42:29,900 Speaker 1: literally selling. 736 00:42:30,140 --> 00:42:32,520 Speaker 3: Yeah. If you want to read more about this, there's 737 00:42:32,560 --> 00:42:34,819 Speaker 3: an article in The Atlantic called The Pearl of Lao 738 00:42:34,840 --> 00:42:37,960 Speaker 3: Tzu by Michael LaPointe from 2018, and that gets into 739 00:42:38,000 --> 00:42:42,450 Speaker 3: the whole history of this pearl and also what happened 740 00:42:42,469 --> 00:42:45,700 Speaker 3: to it because there was also some ownership controversy after Cobb. 741 00:42:46,900 --> 00:42:50,940 Speaker 3: Another commonly repeated claim when people are writing about this 742 00:42:51,000 --> 00:42:54,839 Speaker 3: idea that giant clams will attack people or clamp onto 743 00:42:54,880 --> 00:42:58,270 Speaker 3: them and trap them underwater is the claim that U.S. 744 00:42:58,690 --> 00:43:03,670 Speaker 3: Navy diving manuals of the 20th century portrayed the grip 745 00:43:03,790 --> 00:43:06,590 Speaker 3: of the giant clam as one of the perils of 746 00:43:06,650 --> 00:43:10,750 Speaker 3: working on the bottom. For example, there's an article that 747 00:43:11,170 --> 00:43:13,240 Speaker 3: I think you referred me to, Rob, that was in 748 00:43:13,390 --> 00:43:16,799 Speaker 3: Atlas Obscura. It's about giant clams, but it's actually an 749 00:43:16,920 --> 00:43:20,399 Speaker 3: excerpt from a book by an author named Cynthia Barnett. 750 00:43:20,640 --> 00:43:22,839 Speaker 3: The book came out in 2022, and it's called The 751 00:43:22,900 --> 00:43:26,680 Speaker 3: Sound of the Sea, Seashells and the Fate of the Oceans. 752 00:43:27,320 --> 00:43:31,010 Speaker 3: In this excerpt, the author writes, quote, The stories captured 753 00:43:31,050 --> 00:43:33,850 Speaker 3: the imagination of the U.S. Navy during World War II, 754 00:43:33,910 --> 00:43:36,610 Speaker 3: when soldiers fighting in the Pacific were briefed on the 755 00:43:36,750 --> 00:43:41,040 Speaker 3: man-eating clams. and large sharks known to inhabit the reefs. 756 00:43:41,460 --> 00:43:45,400 Speaker 3: The man-eater myth was so persistent that decades later, Navy 757 00:43:45,460 --> 00:43:49,440 Speaker 3: diving manuals still advised frogmen how to free themselves if 758 00:43:49,520 --> 00:43:53,029 Speaker 3: caught in the vice-like grip of a giant clam, by 759 00:43:53,110 --> 00:43:56,450 Speaker 3: inserting a knife between the valves and severing the animal's 760 00:43:56,550 --> 00:43:57,430 Speaker 3: adductor muscle. 761 00:43:57,450 --> 00:44:01,169 Speaker 1: Yeah, I ran across this tidbit in a couple other 762 00:44:01,210 --> 00:44:03,830 Speaker 1: sources I was looking at as well, but again, couldn't, 763 00:44:04,450 --> 00:44:07,890 Speaker 1: but in terms of finding the original material, I couldn't 764 00:44:07,930 --> 00:44:08,750 Speaker 1: really find anything. 765 00:44:09,030 --> 00:44:11,310 Speaker 3: Yeah, I have no reason to doubt Barnett. I'm sure 766 00:44:11,350 --> 00:44:13,790 Speaker 3: it is out there somewhere, but unfortunately, I wasted a 767 00:44:13,870 --> 00:44:16,790 Speaker 3: lot of time searching in vain for the primary text here. 768 00:44:16,830 --> 00:44:20,580 Speaker 3: I was looking through Navy diving manuals of the 40s, 50s, 769 00:44:20,650 --> 00:44:23,670 Speaker 3: and 70s, and I never found any references to clams. 770 00:44:23,730 --> 00:44:26,950 Speaker 3: In fact, I couldn't find anything at all, really, about 771 00:44:27,030 --> 00:44:31,609 Speaker 3: dealing with wildlife. The sections on dealing with hazards and 772 00:44:32,050 --> 00:44:36,650 Speaker 3: And working on the bottom are highly concerned with various 773 00:44:37,150 --> 00:44:40,129 Speaker 3: forms of entrapment underwater. But it looks to me like 774 00:44:40,150 --> 00:44:44,090 Speaker 3: the most pressing concern is what's called fouling, which is 775 00:44:44,150 --> 00:44:48,390 Speaker 3: when the diver's lifeline or air hose gets caught or 776 00:44:48,530 --> 00:44:51,700 Speaker 3: tangled on something on the bottom, like rocks or wreckage. 777 00:44:52,340 --> 00:44:55,120 Speaker 3: And this is very dangerous because it prevents the diver 778 00:44:55,180 --> 00:44:58,840 Speaker 3: from safely ascending. I found very little about the diver 779 00:44:58,880 --> 00:45:03,779 Speaker 3: themself being caught bodily, though in terms of threats to 780 00:45:03,820 --> 00:45:07,560 Speaker 3: your own body orientation, there are concerns about getting knocked 781 00:45:07,719 --> 00:45:10,880 Speaker 3: over or tripping and falling on a dive because in 782 00:45:10,940 --> 00:45:15,980 Speaker 3: this era, divers would wear a heavy metal helmet applied 783 00:45:16,160 --> 00:45:18,959 Speaker 3: at the surface, kind of like what you see in Bioshock, 784 00:45:19,580 --> 00:45:23,239 Speaker 3: and you had to remain upright during a dive to 785 00:45:23,630 --> 00:45:26,410 Speaker 3: Or you could risk the possibility of flooding the helmet, 786 00:45:26,530 --> 00:45:30,870 Speaker 3: which was very, very bad. So for divers of this period, 787 00:45:30,950 --> 00:45:33,810 Speaker 3: the real monster you have to fear is not a 788 00:45:34,030 --> 00:45:38,890 Speaker 3: creature that lives in the sea. It's hydrostatic pressure. Pressure 789 00:45:38,950 --> 00:45:41,560 Speaker 3: and equipment failures. That's like the main thing to worry about. 790 00:45:41,600 --> 00:45:44,120 Speaker 3: So not only did I not find any references to clams, 791 00:45:44,660 --> 00:45:47,299 Speaker 3: it just seems like wildlife is like so far down 792 00:45:47,320 --> 00:45:49,859 Speaker 3: the list of concerns. Like the thing that they're really 793 00:45:49,900 --> 00:45:53,069 Speaker 3: getting into the uh, the diver's heads here has to 794 00:45:53,110 --> 00:45:56,430 Speaker 3: do with, uh, with dealing with pressure and using your 795 00:45:56,469 --> 00:45:57,390 Speaker 3: equipment properly. 796 00:45:57,410 --> 00:45:58,890 Speaker 1: That's right. Yeah. 797 00:45:59,050 --> 00:45:59,270 Speaker 3: Yeah. 798 00:45:59,310 --> 00:46:03,390 Speaker 1: Pressure, uh, equipment issues, uh, the threats posed potentially by 799 00:46:03,430 --> 00:46:06,660 Speaker 1: other boats, if they're not aware of your presence, things 800 00:46:06,739 --> 00:46:07,200 Speaker 1: like that. 801 00:46:07,489 --> 00:46:07,719 Speaker 3: Yeah. 802 00:46:08,200 --> 00:46:12,819 Speaker 1: Um, you know, to be clear, I mean, there are various, um, 803 00:46:13,880 --> 00:46:17,989 Speaker 1: threats in the water posed by organisms, but, um, A, 804 00:46:18,110 --> 00:46:21,330 Speaker 1: certainly the giant clam doesn't really rank highly among them. 805 00:46:21,969 --> 00:46:23,790 Speaker 1: And I mean, there's even a case to be made. This, 806 00:46:23,870 --> 00:46:26,930 Speaker 1: you know, the references here, you know, point out sharks 807 00:46:27,050 --> 00:46:30,399 Speaker 1: in reef environments. And, you know, there I was when 808 00:46:30,440 --> 00:46:34,120 Speaker 1: I was in reef environments in Raja Ampat, there were 809 00:46:34,140 --> 00:46:37,140 Speaker 1: sharks around, but they were not interested in us at all. 810 00:46:37,300 --> 00:46:42,420 Speaker 1: So it does make me wonder, OK, if playing devil's advocate, 811 00:46:42,460 --> 00:46:47,090 Speaker 1: let's assume that there actually was reference to this in U.S. 812 00:46:47,130 --> 00:46:50,830 Speaker 1: Navy dive manuals of the time period. You could look 813 00:46:50,870 --> 00:46:54,410 Speaker 1: at it in one of two ways. Either, okay, this 814 00:46:54,510 --> 00:46:58,490 Speaker 1: idea was taken up that these organisms were potentially a threat, 815 00:46:58,570 --> 00:47:00,540 Speaker 1: and therefore you needed some sort of a plan of 816 00:47:00,680 --> 00:47:05,259 Speaker 1: action should the threat arise. But maybe also a part 817 00:47:05,300 --> 00:47:07,760 Speaker 1: of it could have been, okay, we're training up a 818 00:47:09,260 --> 00:47:11,440 Speaker 1: lot of landsmen here to go into the water and 819 00:47:11,480 --> 00:47:14,739 Speaker 1: do things for the Navy. They're going to have concerns 820 00:47:15,000 --> 00:47:18,090 Speaker 1: about organisms in the water, Because they've been watching movies 821 00:47:18,150 --> 00:47:20,720 Speaker 1: or reading comic books or listening to radio programs. And 822 00:47:20,880 --> 00:47:24,520 Speaker 1: or we just have a natural aversion to large, strange 823 00:47:24,560 --> 00:47:28,140 Speaker 1: creatures in the water. And that's understandable. And maybe part 824 00:47:28,160 --> 00:47:31,739 Speaker 1: of that was like, OK, there's no reason that the 825 00:47:31,780 --> 00:47:35,020 Speaker 1: giant clam is actually a threat. There's no reason that 826 00:47:35,140 --> 00:47:37,500 Speaker 1: even some of these sharks are necessarily a threat. But 827 00:47:37,520 --> 00:47:40,260 Speaker 1: we need to have give them a plan of action 828 00:47:40,320 --> 00:47:42,930 Speaker 1: so they'll feel more at ease in the water, knowing 829 00:47:42,950 --> 00:47:45,390 Speaker 1: that there is something they can do if this happens. 830 00:47:46,330 --> 00:47:48,850 Speaker 1: if this event were to transpire. Hmm. Yeah. 831 00:47:48,910 --> 00:47:51,570 Speaker 3: Well, you know, I wouldn't say based on what I 832 00:47:51,610 --> 00:47:55,830 Speaker 3: was reading that a giant clam would never be a threat, 833 00:47:55,930 --> 00:47:58,390 Speaker 3: but I would say that it doesn't appear to me 834 00:47:58,489 --> 00:48:00,530 Speaker 3: that the main threat would be that it would close 835 00:48:00,610 --> 00:48:02,779 Speaker 3: upon you. It would be that you would, it would 836 00:48:02,800 --> 00:48:04,840 Speaker 3: be the same threat as like a rock or a 837 00:48:04,920 --> 00:48:07,279 Speaker 3: reef on the ground, which is fouling. You would get 838 00:48:07,360 --> 00:48:10,160 Speaker 3: your lines tangled on it. Yeah. 839 00:48:10,340 --> 00:48:10,520 Speaker 2: Yeah. 840 00:48:10,580 --> 00:48:13,080 Speaker 1: I would, I would agree with that. Treating it essentially 841 00:48:13,140 --> 00:48:18,690 Speaker 1: like a, like any other large, uh, structure or rock 842 00:48:18,770 --> 00:48:20,490 Speaker 1: or piece of coral in the water. 843 00:48:20,870 --> 00:48:23,569 Speaker 3: So beyond all this, I checked around and from what 844 00:48:23,610 --> 00:48:28,719 Speaker 3: I can tell, the killer clam story is universally agreed 845 00:48:28,780 --> 00:48:31,980 Speaker 3: among experts of marine biologists to be without merit. There 846 00:48:32,040 --> 00:48:35,320 Speaker 3: is no solid evidence anywhere of a single example of 847 00:48:35,380 --> 00:48:38,890 Speaker 3: a person ever being killed, seriously injured or trapped by 848 00:48:38,930 --> 00:48:43,879 Speaker 3: a tridacna clam. Marine biology resources stress again and again that, 849 00:48:44,260 --> 00:48:47,730 Speaker 3: like you were saying earlier, Rob, the clamshell can close defensively, 850 00:48:48,210 --> 00:48:51,350 Speaker 3: but it tends to close slowly. It has to expel 851 00:48:51,430 --> 00:48:54,190 Speaker 3: water to do so, and it has to retract its 852 00:48:54,310 --> 00:48:57,529 Speaker 3: own flesh, which tends to protrude out of the gap 853 00:48:57,570 --> 00:49:02,560 Speaker 3: in the shell. So apart from Cobb's story, which there 854 00:49:02,660 --> 00:49:06,660 Speaker 3: are serious reasons for doubting, there's no documented account anywhere 855 00:49:06,700 --> 00:49:08,560 Speaker 3: of a giant clam actually harming anything. 856 00:49:09,630 --> 00:49:14,020 Speaker 1: Yeah, you'd really have to Homer Simpson your arm in there. Like, sir, 857 00:49:14,060 --> 00:49:17,140 Speaker 1: are you just holding on to the inside of the clamp? 858 00:49:17,620 --> 00:49:19,629 Speaker 1: Are you just holding on to the mantle tissue? and 859 00:49:19,690 --> 00:49:21,630 Speaker 1: you'd have to say yes actually that's what I'm doing. 860 00:49:21,840 --> 00:49:23,469 Speaker 3: Well yeah I mean I guess the other thing to 861 00:49:23,530 --> 00:49:26,900 Speaker 3: say is that it has never actually happened that we 862 00:49:26,940 --> 00:49:30,799 Speaker 3: know about or in any verifiable way is different from 863 00:49:30,880 --> 00:49:34,759 Speaker 3: saying it couldn't happen if you did something really stupid 864 00:49:35,080 --> 00:49:37,460 Speaker 3: right like I don't know if like maybe if you 865 00:49:37,640 --> 00:49:40,589 Speaker 3: really like shoved a boot down in there And you 866 00:49:40,719 --> 00:49:43,759 Speaker 3: forced it to stay inside while the clam was closing. 867 00:49:44,000 --> 00:49:46,600 Speaker 3: And until the clam had closed around you, it might 868 00:49:46,660 --> 00:49:48,379 Speaker 3: be hard to get it back out. I don't know. 869 00:49:48,520 --> 00:49:54,790 Speaker 3: But we have no examples that are verifiable that this 870 00:49:54,850 --> 00:49:55,590 Speaker 3: has happened. 871 00:49:56,210 --> 00:49:58,569 Speaker 1: Don't try to be the first. I feel like you'd 872 00:49:58,610 --> 00:50:01,969 Speaker 1: really have to try. You'd really have to get in 873 00:50:02,010 --> 00:50:04,859 Speaker 1: there and really tempt fate and try to make this 874 00:50:04,900 --> 00:50:07,489 Speaker 1: happen for yourself. And, you know, I guess there's one 875 00:50:07,510 --> 00:50:09,880 Speaker 1: way to go down in the history books, but surely 876 00:50:09,900 --> 00:50:14,120 Speaker 1: there's a better option. You'd have to, again, essentially frame 877 00:50:14,239 --> 00:50:16,939 Speaker 1: a giant clam for murder, which I don't think is fair. 878 00:50:17,860 --> 00:50:20,359 Speaker 3: They don't need any more trouble there. I mean, they're 879 00:50:20,380 --> 00:50:22,660 Speaker 3: having a hard time. They take a long time to grow. 880 00:50:23,180 --> 00:50:27,319 Speaker 3: They've been over harvested. Giant giant clams need a break. Yeah. 881 00:50:27,380 --> 00:50:31,520 Speaker 1: Leave them be. Keep a respect, respectful distance. But by 882 00:50:31,560 --> 00:50:33,460 Speaker 1: all means, observe them if you get the chance. Like 883 00:50:33,520 --> 00:50:36,890 Speaker 1: I say, it was it. beautiful and weird to be 884 00:50:36,930 --> 00:50:40,170 Speaker 1: in their presence. I can't stress both enough. Again, their 885 00:50:40,210 --> 00:50:43,969 Speaker 1: mantle tissue is beautiful. Their size alone can be quite 886 00:50:43,989 --> 00:50:47,250 Speaker 1: a spectacle. But there is also something kind of weird because, again, 887 00:50:47,670 --> 00:50:51,710 Speaker 1: we can't help but read them as analogs of human physiology. 888 00:50:51,730 --> 00:50:55,390 Speaker 1: And it's weird that they're kind of like smiling up 889 00:50:55,489 --> 00:50:57,980 Speaker 1: at us from the seafloor. 890 00:50:58,700 --> 00:51:02,420 Speaker 3: Smile back. Yes. Get out of their life. 891 00:51:03,800 --> 00:51:05,460 Speaker 1: All right. Well, I think that's going to do it 892 00:51:05,500 --> 00:51:07,239 Speaker 1: for this episode. But, of course, we'd love to hear 893 00:51:07,260 --> 00:51:10,379 Speaker 1: from everyone out there. We've heard in the past from 894 00:51:10,660 --> 00:51:15,230 Speaker 1: snorkelers and divers with lots of experience. So I know 895 00:51:15,270 --> 00:51:17,390 Speaker 1: we have some snorkelers and divers out there who have 896 00:51:17,450 --> 00:51:20,610 Speaker 1: more experience with giant clams or clams in general and 897 00:51:20,670 --> 00:51:24,790 Speaker 1: might want to chime in with their own expertise, observations, 898 00:51:25,070 --> 00:51:29,740 Speaker 1: or lore that you've heard from people. maybe fellow older 899 00:51:29,860 --> 00:51:34,879 Speaker 1: divers and snorkelers about giant clams, whether it's pure mythology 900 00:51:35,060 --> 00:51:37,910 Speaker 1: or fact-based. We love to hear about it, so write in. 901 00:51:38,219 --> 00:51:39,910 Speaker 1: Just a reminder that Stuff to Blow Your Mind is 902 00:51:39,950 --> 00:51:42,690 Speaker 1: primarily a science and culture podcast with core episodes on 903 00:51:42,710 --> 00:51:45,509 Speaker 1: Tuesdays and Thursdays. We have short-form episodes on Wednesdays and 904 00:51:45,550 --> 00:51:47,790 Speaker 1: on Fridays. We set aside most serious concerns to just 905 00:51:47,810 --> 00:51:49,870 Speaker 1: talk about a weird film on Weird House Cinema. 906 00:51:50,469 --> 00:51:53,759 Speaker 3: Huge thanks, as always, to our excellent audio producer, J.J. 907 00:51:53,800 --> 00:51:54,240 Speaker 1: Poswade. 908 00:51:54,690 --> 00:51:56,130 Speaker 3: If you would like to get in touch with us 909 00:51:56,190 --> 00:51:58,690 Speaker 3: with feedback on this episode or any other, to suggest 910 00:51:58,750 --> 00:52:00,850 Speaker 3: a topic for the future, or just to say hello, 911 00:52:00,969 --> 00:52:04,850 Speaker 3: you can email us at contact at stufftoblowyourmind.com. 912 00:52:05,760 --> 00:52:15,200 Speaker 2: Stuff to Blow Your Mind is a production of iHeartRadio. 913 00:52:15,560 --> 00:52:18,899 Speaker 2: For more podcasts from iHeartRadio, visit the iHeartRadio app. Apple 914 00:52:18,920 --> 00:52:28,549 Speaker 2: Podcasts are wherever you listen to your favorite shows. Thank you.