WEBVTT - How Dolphins Work! 0:00:12.160 --> 0:00:15.040 And welcome to the podcast. I'm Josh, and there's Chuck. 0:00:15.560 --> 0:00:19.120 Jerry's here too, And this is stuff you should know 0:00:19.960 --> 0:00:23.320 where we use a lot of up speak. So there 0:00:23.360 --> 0:00:23.680 you go. 0:00:24.360 --> 0:00:25.120 Was that your dolphin? 0:00:26.079 --> 0:00:29.880 Yeah, I hadn't practiced for a while, so it was 0:00:29.920 --> 0:00:30.640 a little rusty. 0:00:31.600 --> 0:00:35.960 Hey, can I just very quickly mention the correction? Oh sure, 0:00:36.080 --> 0:00:37.639 I'm free wheeling it here. But we got a lot 0:00:37.640 --> 0:00:42.040 of emails from people that are in disbelief that we 0:00:42.080 --> 0:00:43.440 didn't know it's chassis. 0:00:44.440 --> 0:00:46.440 Oh I knew its Chassie. I used it correctly. 0:00:47.080 --> 0:00:49.680 Oh. Everyone said that we were saying chassis, and every 0:00:49.680 --> 0:00:51.960 time I said it, you were like, yeah. 0:00:51.479 --> 0:00:53.880 I didn't I would. I just didn't correct you. 0:00:53.920 --> 0:00:57.080 No, Well, I appreciate that sometimes you. 0:00:57.360 --> 0:00:59.560 Don't like to be corrected, or else you're like, I know, 0:00:59.640 --> 0:01:03.120 I'm just saying it that way. So I just didn't 0:01:04.080 --> 0:01:06.760 not so to leave you out there twisting or anything 0:01:06.880 --> 0:01:07.240 like that. 0:01:07.520 --> 0:01:09.399 Okay, interesting, if you. 0:01:09.360 --> 0:01:11.680 Want, maybe we can retake this whole thing and I'll 0:01:11.720 --> 0:01:13.400 just I'll just take it with you. How about that. 0:01:13.600 --> 0:01:16.679 No, that's all right. Anyway, I didn't know was pronounced chassis. 0:01:16.720 --> 0:01:19.399 Now that I hear it, I've heard that word. But 0:01:19.480 --> 0:01:21.160 I'm not a car guy, so I don't know these things. 0:01:21.400 --> 0:01:24.920 Well. I feel really terrible. I mean, I feel terrible. 0:01:25.000 --> 0:01:27.920 I'm very sorry. I'll correct you every single time from 0:01:27.920 --> 0:01:31.560 now on. Okay, great, Okay, I'll just bring the podcast 0:01:31.560 --> 0:01:34.200 to a screeching halt and be like, no, that was wrong. 0:01:35.160 --> 0:01:37.120 Okay, that's really funny. 0:01:37.240 --> 0:01:42.399 What a twist, man, I'm sorry, Chuck. So we're talking 0:01:42.440 --> 0:01:45.720 about dolphins. Is that how I was pronounced? 0:01:46.280 --> 0:01:46.640 I think? 0:01:46.720 --> 0:01:50.400 So, okay, that's that we should say it. Then. I'm 0:01:50.440 --> 0:01:53.760 pretty excited about this one, Chuck, because, as everybody knows, 0:01:53.800 --> 0:01:56.960 dolphins are awesome, and we're going to talk about all 0:01:56.960 --> 0:02:00.320 the reasons why they're awesome. It's pretty much the gist 0:02:00.360 --> 0:02:01.200 of this episode. 0:02:01.720 --> 0:02:06.080 Yeah, I mean, you know, dolphins are marine mammals. I 0:02:06.120 --> 0:02:09.040 guess we should start there, and that entails a whole 0:02:09.080 --> 0:02:11.280 host of things that we're going to go over, not 0:02:11.360 --> 0:02:16.959 just some fish, but they technically are cetaceans, and that's 0:02:17.000 --> 0:02:21.720 a marine mammal, along with eighty other types of species, 0:02:21.760 --> 0:02:25.320 including whales. And if you think porpoises are the same, 0:02:25.919 --> 0:02:27.239 it's in that same species. 0:02:27.320 --> 0:02:31.799 So relax, right, And I just realized, Chuck, I don't 0:02:31.800 --> 0:02:33.919 have any of my notes here, so I could try 0:02:33.960 --> 0:02:36.079 to wing it, or you can just wait a second 0:02:36.080 --> 0:02:39.000 and I can go get my notes, go. 0:02:38.880 --> 0:02:41.400 Get your notes, and I'll just continue and no, it 0:02:41.480 --> 0:02:42.840 will be any the wiser, and. 0:02:42.800 --> 0:02:44.480 Then you can fill me in when I get back. 0:02:44.560 --> 0:02:45.280 Yeah, exactly. 0:02:45.440 --> 0:02:45.800 Okay. 0:02:47.040 --> 0:02:49.840 There are forty plus species of dolphin and they're in 0:02:49.840 --> 0:02:55.240 the family of oceanic dolphins or delphinity. And there's also 0:02:55.280 --> 0:02:57.359 river dolphins. So I know everyone's out there saying, hey, 0:02:57.400 --> 0:03:00.200 there's river dolphins out there. There aren't many. There's four 0:03:00.320 --> 0:03:04.600 river not just four, but four kinds of river dolphins, 0:03:05.240 --> 0:03:08.040 and each one is just one species. So those are 0:03:08.040 --> 0:03:08.840 the river dolphins. 0:03:09.200 --> 0:03:11.320 Yeah, I've always found that so weird. I mean, I 0:03:11.400 --> 0:03:14.680 know that taxonomically you're supposed to really kind of stick 0:03:14.720 --> 0:03:16.640 to it, but there's got to be a better way, 0:03:16.680 --> 0:03:16.880 you know. 0:03:17.400 --> 0:03:19.560 Yeah, for sure. But we're I mean, we're gonna talk 0:03:19.600 --> 0:03:21.520 a little bit about other kinds, but we're mainly gonna 0:03:21.520 --> 0:03:24.560 be talking about the bottle nose of which they're about 0:03:24.600 --> 0:03:27.600 six hundred thousand, because the bottlenose dolphin is the one 0:03:27.600 --> 0:03:29.840 that everyone is most familiar with and the ones that 0:03:29.880 --> 0:03:31.920 are on TV and unfortunately. 0:03:32.040 --> 0:03:38.920 And dolphin aarians, uh yeah, where they keep dolphins as hostages. 0:03:39.440 --> 0:03:42.320 Yeah, and make them perform tricks for dopes. 0:03:42.760 --> 0:03:47.600 It's crazy. Yeah. So yeah, bottlenos are the money dolphins. 0:03:47.600 --> 0:03:51.240 It's everdvice talking about, and that's what we're gonna talk about. 0:03:51.440 --> 0:03:54.520 And they I think they're one of the more studied 0:03:54.520 --> 0:03:57.240 ones too, even though the common ones are so many 0:03:57.240 --> 0:04:00.360 more of them. But we know that dolphins bottlenose dolphins. 0:04:00.400 --> 0:04:03.160 And yeah, I think basically when we're saying dolphins, unless 0:04:03.160 --> 0:04:06.080 we specify, we're talking about bottlenose dolphins, how's that for 0:04:06.160 --> 0:04:07.080 some guardrails? 0:04:07.280 --> 0:04:10.680 Yeah, for sure. And also speaking of guardrails, we might 0:04:10.720 --> 0:04:12.840 as well just go ahead and say, I know there'd 0:04:12.840 --> 0:04:15.920 be plenty of kids listening because they love our animal episodes. 0:04:16.080 --> 0:04:19.279 Oh yeah, and the dolphin episode gets a little you know, 0:04:20.000 --> 0:04:22.400 a little blue not blue. 0:04:22.240 --> 0:04:24.840 Necessarily, it gets a little sexy here in there, but 0:04:24.960 --> 0:04:28.000 you know that's just the deal with dolphins. 0:04:28.800 --> 0:04:32.240 Okay. So so yeah, so I think that was a 0:04:32.240 --> 0:04:36.000 pretty good seahoey man, because it does get a little you. 0:04:35.960 --> 0:04:37.880 Know, I mean, hey, we're I feel like this is 0:04:37.920 --> 0:04:41.520 all like scientific stuff, so we should be able to 0:04:41.760 --> 0:04:43.320 handle it and kids should be able to handle it. 0:04:43.360 --> 0:04:45.800 But if there are any adults that are like, what 0:04:45.839 --> 0:04:49.440 are you talking about, then do the little research first. 0:04:49.960 --> 0:04:53.160 Right. Oh, so, I think I was talking about how 0:04:53.160 --> 0:04:55.720 bottlenose dolphins are pretty well studied that we know that 0:04:55.760 --> 0:04:58.520 they live for about forty five to fifty years. Yeah, 0:04:58.560 --> 0:05:01.160 pretty good, that's in the wild. Yeah, of course, I know. 0:05:01.200 --> 0:05:03.840 We've talked about plenty of animals over the years where 0:05:03.920 --> 0:05:07.440 they actually live longer in captivity, usually because they're just 0:05:07.520 --> 0:05:10.839 food for other larger animals. That's not true with dolphins. 0:05:10.880 --> 0:05:15.600 Their lifespan is usually much shorter, and that's controversial. We'll 0:05:15.640 --> 0:05:17.359 talk about that later. But we know that in the 0:05:17.360 --> 0:05:20.839 wild fifty years that's a pretty aged dolphin if you 0:05:20.839 --> 0:05:21.480 think about it. 0:05:21.800 --> 0:05:24.159 No, agreed, that's a nice long life I think for 0:05:24.240 --> 0:05:25.560 a sea creature. 0:05:25.800 --> 0:05:28.799 Yeah, well more can they ask for? Stop complaining dolphins? 0:05:29.360 --> 0:05:33.520 There was one supposedly that was sixty seven years old, 0:05:33.640 --> 0:05:36.960 presumed dead in twenty seventeen, But my friend, I like 0:05:37.000 --> 0:05:39.080 to think that that dolphin is seventy five right now. 0:05:39.400 --> 0:05:43.120 Nice. I think that's a great way to look at things. Yeah, 0:05:43.680 --> 0:05:47.720 so do you kind of see dolphins closer to shore? 0:05:48.400 --> 0:05:51.560 Sometimes they are basically just out to see. It depends 0:05:51.560 --> 0:05:56.159 on the species. I think common dolphins stay fairly close 0:05:56.200 --> 0:05:59.920 to shore. Bottlenose will get right up on you essentially 0:06:01.200 --> 0:06:04.120 the place where you mean. I used to live kind 0:06:04.120 --> 0:06:07.960 of along the coast in our backyard. Dolphins would swim 0:06:08.000 --> 0:06:11.880 there's like a lagoon. And now that I know a 0:06:11.880 --> 0:06:14.400 little more about dolphins, I always assumed they were bottle nose, 0:06:14.440 --> 0:06:16.120 but now that I know a little more, I think 0:06:16.160 --> 0:06:17.919 that they were probably common dolphins. 0:06:18.279 --> 0:06:21.000 Well there's a lot more. There's like millions and millions 0:06:21.000 --> 0:06:24.640 of those, and about six hundred thousand bottle nose. So yeah, statistically, 0:06:24.640 --> 0:06:26.520 you're probably right precisely. 0:06:26.600 --> 0:06:28.400 And then the other reason that I think that is 0:06:28.440 --> 0:06:31.400 because they would basically put on a show chasing fish. 0:06:31.400 --> 0:06:33.560 They'd jump out of the water and they chase the 0:06:33.600 --> 0:06:36.640 fish backwards. It was really something to see. And apparently 0:06:36.680 --> 0:06:39.440 the common dolphins are more acrobatic than bottle nose. 0:06:39.720 --> 0:06:41.720 Okay, and they might have been playing, as we'll see, 0:06:41.800 --> 0:06:42.799 you never know, that's possible. 0:06:42.839 --> 0:06:45.479 They might have been teasing them poor fish. 0:06:45.520 --> 0:06:47.800 If you are somewhere where you can look up safely 0:06:48.279 --> 0:06:50.760 on the computer and image, you should look up pa 0:06:50.960 --> 0:06:55.440 ki Ce t u s the I guess the pacasidas. 0:06:56.040 --> 0:06:56.960 You nailed it, Chuck. 0:06:57.160 --> 0:07:00.240 That is the common ancestor that dolphins share. That was 0:07:00.279 --> 0:07:03.200 around about fifty million years ago. And if you look 0:07:03.240 --> 0:07:04.760 at it and say, well, wait a minute, Chuck, this 0:07:04.800 --> 0:07:09.600 thing's walking around on four legs with fur. That's because 0:07:09.640 --> 0:07:11.960 that's where dolphins came from. It's pretty remarkable when you 0:07:11.960 --> 0:07:13.840 look at it. It looks like when you see the 0:07:13.880 --> 0:07:16.440 head of that thing, you can see the dolphin in it, 0:07:16.520 --> 0:07:16.760 you know. 0:07:17.480 --> 0:07:23.480 Yeah, So dolphins are more closely related to hippopotami than 0:07:23.520 --> 0:07:26.720 they are like sea lions or otters or anything like 0:07:26.760 --> 0:07:30.040 that that are also aquatic or semi aquatic. And it's 0:07:30.080 --> 0:07:35.679 because this this pacasidas basically moved to the water little 0:07:35.680 --> 0:07:38.200 by little by little, and it's one of those rare 0:07:38.360 --> 0:07:44.040 evolutions where we have like a complete fossil record from 0:07:44.080 --> 0:07:47.200 pecasidas to dolphin. We know all of the iterations that 0:07:47.240 --> 0:07:50.280 went through over the tens and tens of millions of years. 0:07:50.840 --> 0:07:53.480 But that's I mean, that's where dolphins came from. They 0:07:53.480 --> 0:07:57.000 were basically these wolf size creatures. 0:07:57.280 --> 0:07:59.679 Yeah, and one of them, I guess spent a little 0:08:00.080 --> 0:08:02.360 extra time in the water and it was like, you, guys, 0:08:02.560 --> 0:08:05.480 this is fantastic, Like you should come in here, we 0:08:05.480 --> 0:08:07.760 should all just stay a little longer. And then before 0:08:07.800 --> 0:08:11.160 you know it, their legs turned into flippers exactly two 0:08:11.240 --> 0:08:11.840 or three days. 0:08:12.040 --> 0:08:16.160 What's cool, too, is there when dolphins are in the 0:08:16.200 --> 0:08:20.800 embryonic stage, they actually start to develop limbs. Yeah, before 0:08:20.880 --> 0:08:24.400 the jeans kick in and we'll actually kick off, I guess, 0:08:24.800 --> 0:08:27.600 and they stop developing and then get absorbed. But they're 0:08:27.640 --> 0:08:31.880 like in a stage of development they start to grow limbs. 0:08:31.880 --> 0:08:35.760 So that's I mean, it's a pretty good indication they 0:08:35.880 --> 0:08:37.199 used to be land mammals. 0:08:37.400 --> 0:08:39.800 Yeah, they have vestigial ears, as we'll see too, but 0:08:39.840 --> 0:08:42.600 I'll just just kind of tease that out, right. 0:08:42.640 --> 0:08:45.880 And then so the speciation from land mammal to semi 0:08:45.880 --> 0:08:50.960 aquatic mammal to fully aquatic mammal. The dolphin was complete 0:08:51.360 --> 0:08:54.800 when somebody mentioned being wet to a dolphin and the 0:08:54.840 --> 0:08:56.720 dolphin said, what is wet? 0:08:57.520 --> 0:08:57.800 Really? 0:08:58.520 --> 0:09:01.520 Yeah, this was my that was my understanding from the 0:09:01.640 --> 0:09:03.079 National History Museum. 0:09:03.760 --> 0:09:05.920 So like we said that, you know, they're gonna share 0:09:05.960 --> 0:09:08.400 some characteristics with land mammals, but they have a lot 0:09:08.400 --> 0:09:10.600 of really cool traits and some of these are like 0:09:11.400 --> 0:09:14.560 you may know, and some of these are just I mean, 0:09:14.600 --> 0:09:17.319 if you're wondering why people are obsessed with dolphins, it's 0:09:17.360 --> 0:09:19.960 not just because they go to a dolphin show and 0:09:20.000 --> 0:09:22.080 think they're awesome, or maybe that's why you might be 0:09:22.120 --> 0:09:26.680 obsessed with them, listener, But there are so many remarkable, 0:09:26.720 --> 0:09:30.200 amazing facts about dolphins. They just kind of stack up, 0:09:30.240 --> 0:09:32.160 like usually when we do anamal episodes or like one 0:09:32.240 --> 0:09:34.520 or two like Factor the episodes, but this is just 0:09:34.600 --> 0:09:35.640 riddled with them. 0:09:35.960 --> 0:09:39.280 Yeah, so let's let's start. And also a big shout 0:09:39.280 --> 0:09:41.520 out thanks to Kyle for helping us out with this one. 0:09:41.679 --> 0:09:44.080 Oh Kyle, Okay, thanks mate, or. 0:09:44.120 --> 0:09:46.680 No, it's probably key Lay, now that I think about it, 0:09:48.200 --> 0:09:50.880 I feel I feel terrible, Chuck. I'm so sorry, man. 0:09:52.679 --> 0:09:55.719 So that's okay. So they are placental mammals, so they're 0:09:55.760 --> 0:09:58.400 gonna they're not gonna lay eggs like you might see 0:09:58.400 --> 0:10:00.360 a fish stew in the water. They bear live young 0:10:01.040 --> 0:10:03.960 and it depends on the species, but their pregnancies are 0:10:04.000 --> 0:10:06.880 going to be between about ten and eighteen months. I 0:10:06.920 --> 0:10:08.880 don't think I mentioned while you were gone that orcas 0:10:09.520 --> 0:10:15.600 are part of this group or species family family. Okay, 0:10:15.600 --> 0:10:16.000 I knew it was. 0:10:16.040 --> 0:10:19.160 Yeah, them, they're actually dolphins, they're not real whales. 0:10:19.400 --> 0:10:22.360 Yeah, exactly. So I think the orcas have the longest 0:10:22.400 --> 0:10:26.480 gestation period of about eighteen months. But it's very cute 0:10:26.480 --> 0:10:28.560 because they're going to nurse those calves sometimes up to 0:10:28.559 --> 0:10:31.160 two years, at a minimum of six months, and those 0:10:31.160 --> 0:10:34.160 little babies stay with mama for up to five years. 0:10:34.400 --> 0:10:36.839 Yeah, like toddlers. Isn't that adorable? 0:10:37.160 --> 0:10:37.880 Yeah. 0:10:38.200 --> 0:10:40.720 One thing that I hadn't considered is that so dolphins 0:10:40.840 --> 0:10:43.120 nurse underwater? Wait, do you think. 0:10:43.040 --> 0:10:46.160 After your child passes toddlerhood they're just sent out to 0:10:46.200 --> 0:10:46.559 the wild. 0:10:46.880 --> 0:10:51.200 That was my understanding from the National History Museum. Again, Okay, great, 0:10:51.440 --> 0:10:52.800 they're really misinforming me. 0:10:52.840 --> 0:10:53.400 Apparently. 0:10:54.559 --> 0:10:56.520 So one thing I hadn't thought of as I was saying, 0:10:56.600 --> 0:11:00.040 is that that dolphin is to nurse underwater, which it 0:11:00.080 --> 0:11:02.120 could be kind of hard. And then adding to the 0:11:02.120 --> 0:11:04.200 fact that they don't have lips that they can kind 0:11:04.200 --> 0:11:09.160 of latch onto a nipple with. It's a puzzler. And 0:11:09.200 --> 0:11:11.400 it turns out that the way that they nurse is 0:11:11.520 --> 0:11:15.480 by rolling their tongue into essentially a straw. Yeah, and 0:11:15.520 --> 0:11:19.400 that's what they latch onto. And apparently we know that 0:11:19.640 --> 0:11:22.640 it's not the tastiest milk as far as a human 0:11:22.760 --> 0:11:28.000 palette is concerned, thanks to a scientist named Lillian Eichelberger, who, 0:11:28.360 --> 0:11:30.800 I guess on a dare drank some dolphin milk and 0:11:30.960 --> 0:11:35.640 was like, it's fishy, oily, it lacks sweetness, No, Sarah, 0:11:35.679 --> 0:11:36.319 I don't like it. 0:11:36.920 --> 0:11:38.920 Yeah, And if you think that's a weird thing to 0:11:38.960 --> 0:11:43.280 do while studying dolphins, just strap in, because it's true. 0:11:43.520 --> 0:11:46.280 Things get much weirder. That was for sure nineteen forty. 0:11:46.280 --> 0:11:48.280 Things got weird in the seventies, as we'll see, but 0:11:48.360 --> 0:11:51.520 this got like a milkshake consistency, which is why I 0:11:51.520 --> 0:11:54.160 guess the straw shaped tongue kind of fits. 0:11:54.160 --> 0:11:55.120 I guess, I guess. 0:11:55.160 --> 0:11:55.240 So. 0:11:55.640 --> 0:11:59.760 Yeah, So they have to swim. Obviously, they don't have 0:11:59.800 --> 0:12:04.320 to swim to survive because they breathe air, so it's 0:12:04.320 --> 0:12:07.400 not like they need air to pass across gills to survive. 0:12:07.480 --> 0:12:08.199 Right, good point. 0:12:08.600 --> 0:12:10.760 They do swim quite a bit. They're known for it. 0:12:10.960 --> 0:12:14.800 Their bodies are actually streamlined to help them swim even more. 0:12:15.440 --> 0:12:17.760 One thing I also didn't know is that the pectoral fins, 0:12:17.840 --> 0:12:20.160 the ones that stand up off the back where you're 0:12:20.160 --> 0:12:22.439 like shark and then your friend says, no, it's dolphin. 0:12:22.760 --> 0:12:26.160 You go, oh, a dolphin. They have no bone. I 0:12:26.200 --> 0:12:29.200 believe there's just cartilage and those are they use those 0:12:29.240 --> 0:12:30.240 to help to steer. 0:12:30.840 --> 0:12:33.600 Yeah, for sure, it's like a little steering unit. They 0:12:33.640 --> 0:12:36.880 have a layer of blubber. You associate blubber with whales, 0:12:36.880 --> 0:12:38.959 but the dolphin has blubber too, which is going to 0:12:39.040 --> 0:12:42.040 provide a little bit of buoyancy if they haven't had 0:12:42.080 --> 0:12:44.200 food in a while, you know, just like humans do. 0:12:44.240 --> 0:12:47.360 They can sort of devour their own fat, helps out 0:12:47.360 --> 0:12:50.360 with body heat. And then besides that steering, they have 0:12:50.840 --> 0:12:54.439 two horizontal flukes on the tail, so they move vertically. 0:12:54.480 --> 0:12:57.440 So that's another great way to tell a shark from 0:12:57.559 --> 0:13:00.559 a dolphin, aside from just opening your eyeballs, because right, 0:13:00.720 --> 0:13:03.360 I think they look quite different. But the shark, you know, 0:13:03.480 --> 0:13:07.920 has that vertical tail that sort of goes from side 0:13:07.920 --> 0:13:11.040 to side. The dolphins is flipped and to me looks 0:13:11.040 --> 0:13:12.080 like a more efficient system. 0:13:12.120 --> 0:13:14.760 But that's just a guess you'd think. So the sharks 0:13:14.760 --> 0:13:16.640 seem to do pretty well for themselves though. 0:13:16.840 --> 0:13:22.120 Yeah, and real quick inshow correction, I guess the dorsal 0:13:22.120 --> 0:13:25.719 fin is the one on top, right, Yes, yeah, that's 0:13:25.800 --> 0:13:29.280 for the stability. The steering comes from those little side flippers, 0:13:29.280 --> 0:13:30.120 the pectoral fins. 0:13:30.360 --> 0:13:33.280 Yeah, okay, I definitely got that wrong. So to like 0:13:33.360 --> 0:13:36.760 reimagine it, just imagine a kid running around with their 0:13:36.880 --> 0:13:40.280 arms sticking out like they're pretending to fly, except dolphins 0:13:40.280 --> 0:13:42.440 do it for real and in the water. Those are 0:13:42.480 --> 0:13:43.960 the big differences. 0:13:43.720 --> 0:13:45.880 That's right, Or like a kid running with their arms 0:13:45.920 --> 0:13:48.880 to the side, like in the terrifying new movie Weapons. 0:13:49.240 --> 0:13:51.719 Oh, don't tell me anything about it. 0:13:51.760 --> 0:13:54.640 That's funny that you always say that, even though I've 0:13:54.640 --> 0:13:56.199 never told you anything about anything. 0:13:56.400 --> 0:13:58.599 Well, you just told me that. I just want you 0:13:58.720 --> 0:13:59.600 to stop right there. 0:14:00.320 --> 0:14:02.720 Yeah, yeah, it's on the poster, okay, all right. 0:14:04.080 --> 0:14:06.200 So yeah, I can't wait to see that movie. I'm 0:14:06.280 --> 0:14:09.079 very exciting. And you said to see it in the theater, right, I. 0:14:09.000 --> 0:14:11.000 Mean, I recommend it. I was at a sold out 0:14:11.000 --> 0:14:14.319 ten thirty a m. So people are pretty hyped about it. 0:14:15.120 --> 0:14:16.680 But it was also kind of neat that there were 0:14:17.000 --> 0:14:20.240 at least twenty local Atlanta crew as it turned out, 0:14:20.280 --> 0:14:22.560 because when the credits started rolling, they were all hanging 0:14:22.560 --> 0:14:23.760 out and like clapping for each other. 0:14:24.200 --> 0:14:26.720 Oh neat that's very supportive. Did you know any of them? 0:14:28.160 --> 0:14:31.240 I did, but I didn't know until afterward when Emily 0:14:31.320 --> 0:14:33.440 said that my friend Stephanie worked on it, and I 0:14:33.480 --> 0:14:35.280 was like, oh, she might have been one of those people. 0:14:35.600 --> 0:14:39.440 That's very cool. So yeah, I want to see that movie. 0:14:39.560 --> 0:14:40.720 Yeah, Act to Dolphins. 0:14:40.840 --> 0:14:45.000 Yeah, So, dolphins are also known for as far as 0:14:45.000 --> 0:14:47.040 they swim, they kind of jump in and out of 0:14:47.040 --> 0:14:50.320 the water and can go quite fast doing that. It's 0:14:50.360 --> 0:14:55.080 called porpoising, much to dolphins chagrin. And it turns out 0:14:55.120 --> 0:14:57.280 it's not just porpoises and dolphins that swim like that. 0:14:57.320 --> 0:15:00.240 Penguins do too, And I was like, no way. This 0:15:00.320 --> 0:15:02.360 came from the National History Museum, so I had to 0:15:02.360 --> 0:15:05.600 go double check, and by god, I saw a video 0:15:05.760 --> 0:15:09.320 of penguins swimming super fast, faster than dolphins, and they 0:15:09.320 --> 0:15:11.840 were porpoising in and out of the water. It was 0:15:12.360 --> 0:15:16.480 really something to see. Have you not seen that before? 0:15:17.320 --> 0:15:19.520 Not that I know of. I mean, I forget stuff, 0:15:19.520 --> 0:15:22.120 so it's possible, but it seemed pretty shocking to me 0:15:22.200 --> 0:15:22.920 when I saw it. 0:15:24.000 --> 0:15:28.119 Dolphins are also pretty good smellers. They have a blowhole 0:15:28.200 --> 0:15:31.920 it's basically like nostrils in it's above the frontal skull bones, 0:15:32.480 --> 0:15:34.680 and it's kind of cool because it connects right to 0:15:34.720 --> 0:15:38.880 their lungs. They're not mouth breathers, even though apparently they 0:15:38.880 --> 0:15:42.640 did find a mouth breathing Hector's dolphin, which are dolphins 0:15:42.840 --> 0:15:46.560 near New Zealand in twenty fifteen. Yeah, so I don't 0:15:46.600 --> 0:15:48.520 know what that says about that guy, but he was 0:15:48.600 --> 0:15:51.360 a mouth breather. But that blowhole, like I said, is 0:15:51.440 --> 0:15:54.320 connected directly to the lungs, and they can open it 0:15:54.400 --> 0:15:57.200 and close it with a nasal plug and they can 0:15:57.360 --> 0:15:59.760 fill that thing up very very fast. Like in afraction 0:15:59.840 --> 0:16:02.640 was second, they can fill up their lungs through the blowhole. 0:16:03.920 --> 0:16:06.000 They only breathe five or six times a minute, and 0:16:06.400 --> 0:16:07.960 they can't stand or water all day. But they can 0:16:08.000 --> 0:16:09.520 stay down there for a few minutes at a time. 0:16:09.680 --> 0:16:11.480 Yeah for sure. But if they say down there too 0:16:11.520 --> 0:16:13.160 long and they run out of air, they can't drown. 0:16:13.240 --> 0:16:17.560 They are air breathing mammals. Yeah, don't forget that. 0:16:17.640 --> 0:16:19.040 The saddest thing I could imagine. 0:16:19.680 --> 0:16:24.000 Yeah, which we'll get to that later. Yeah, the blowhole 0:16:24.080 --> 0:16:27.080 also does a really good job of expelling air, because 0:16:27.120 --> 0:16:29.960 again this is like it's like our mouth breathing in 0:16:30.000 --> 0:16:33.400 and out except on the top of our head. So 0:16:33.520 --> 0:16:36.240 when they breathe out, especially having been underwater for a 0:16:36.280 --> 0:16:42.280 little while, they're breathing out warm air into usually colder 0:16:42.320 --> 0:16:45.720 air because the sea temperature is usually warmer than the 0:16:45.760 --> 0:16:49.360 surface temperature in a lot of cases, and it'll condense 0:16:49.400 --> 0:16:52.760 and that's what their their spout is. It's like you 0:16:52.800 --> 0:16:53.400 can see it. 0:16:54.200 --> 0:16:56.080 Yeah, it's pretty cool. And apparently you can tell like 0:16:56.360 --> 0:16:59.360 different species apart by the like kind of spout they have. 0:16:59.400 --> 0:17:02.320 Right, Yeah, from what I understand, I couldn't, but I 0:17:02.320 --> 0:17:03.440 think scientists can. 0:17:05.440 --> 0:17:07.800 Why don't you take the una hemispheric sleep because that's 0:17:07.800 --> 0:17:09.680 pretty remarkable and you haven't had a wowie. 0:17:10.240 --> 0:17:13.840 Oh thanks. Also, I have a correction that I want 0:17:13.880 --> 0:17:19.080 to put in too. Okay, okay, So we're talking about 0:17:19.080 --> 0:17:23.480 what dolphins do is uni hemispheric sleep, which is because 0:17:23.560 --> 0:17:27.600 they are in danger of predation because they don't stop 0:17:27.640 --> 0:17:30.360 and like you know, follow the bottom of the ocean. 0:17:31.400 --> 0:17:35.439 They actually have to keep going while they're sleeping. So 0:17:35.480 --> 0:17:37.480 what they do is shut down half of their brain 0:17:38.280 --> 0:17:40.320 and the other half just kind of keeps an eye 0:17:40.359 --> 0:17:43.760 on things. And then when the one brain, one side 0:17:43.760 --> 0:17:45.960 of the brain has had enough sleep. It's which is 0:17:46.040 --> 0:17:48.640 over to the other hemisphere, and then that one takes 0:17:48.640 --> 0:17:50.640 its turn to sleep and the other one takes over 0:17:50.840 --> 0:17:51.960 to kind of stand guard. 0:17:52.720 --> 0:17:54.760 Yeah, that sleeping with one eye open is kind of 0:17:54.800 --> 0:17:58.000 an old like Western trope. But that's like so funny 0:17:58.000 --> 0:17:59.159 that dolphins literally do that. 0:17:59.400 --> 0:18:02.680 Yeah. Sure, and that actually ties in, chuck you ne 0:18:02.760 --> 0:18:06.280 hemispheric sleep to our Zizzeyan's episode because they were trying 0:18:06.280 --> 0:18:08.520 to figure out how to do that themselves, which seems 0:18:08.520 --> 0:18:10.800 to be impossible for humans from what I can tell. 0:18:11.440 --> 0:18:14.760 And by the way, stay tuned for listener mail because 0:18:14.840 --> 0:18:18.040 I have a correction related to the Zizians episode. So 0:18:18.119 --> 0:18:22.159 this is like a correction loused episode. 0:18:22.200 --> 0:18:24.320 Okay, all right, should we take a break? 0:18:24.480 --> 0:18:25.239 Yes, I think so. 0:18:25.480 --> 0:18:27.840 Okay, we'll come back with correction fest right after this. 0:18:47.640 --> 0:18:51.520 All right, we're back with more on dolphins. No more corrections, 0:18:51.560 --> 0:18:55.399 I promise they have. And this is to me another 0:18:55.520 --> 0:18:58.360 like fact of the show. They have incredible eyesight. They 0:18:58.359 --> 0:19:00.520 see really really well within about a hundre and fifty 0:19:00.520 --> 0:19:04.440 feet and they do this because they have two kind 0:19:04.480 --> 0:19:07.240 of slightly flattened eyeballs on the sides of their head. 0:19:07.280 --> 0:19:08.600 When you look at a dolphin. They're kind of on 0:19:08.640 --> 0:19:12.280 the sides and they see from both simultaneously, and then 0:19:12.560 --> 0:19:14.760 like us with binocular vision, they stitch it together to 0:19:14.800 --> 0:19:17.399 see one thing. But what that results in is a 0:19:17.440 --> 0:19:20.960 three hundred degree panoramic view nice where they can see 0:19:21.160 --> 0:19:23.880 basically anywhere they want except right above them. 0:19:24.600 --> 0:19:27.159 Yeah, that's their one blind spot is above them. And 0:19:27.240 --> 0:19:30.280 apparently if they're trying to get a really good look 0:19:30.320 --> 0:19:33.040 at you, they'll tilt their head down and try to 0:19:33.080 --> 0:19:36.639 look at you like that. It's pretty cute. Yeah, So 0:19:37.160 --> 0:19:41.720 they actually do have really good eyesight underwater and above water. 0:19:41.880 --> 0:19:44.680 And the way that they can transition from a fairly 0:19:44.800 --> 0:19:50.959 dark environment to a bright, sunny environment because they have 0:19:51.000 --> 0:19:54.199 a double slit in their pupils. So when their pupils 0:19:54.200 --> 0:19:57.360 are wide open and say they're kind of dive, they've 0:19:57.480 --> 0:20:00.280 dived deep and there's not a lot of light trying 0:20:00.320 --> 0:20:02.000 to capture all of it. It looks like they have 0:20:02.040 --> 0:20:05.199 two tiny pupils. But then as they come up to 0:20:05.280 --> 0:20:08.399 the surface and they get closer to the sun, one 0:20:08.480 --> 0:20:11.080 of their pupils or one of the slits closes in 0:20:11.160 --> 0:20:13.359