WEBVTT - Thar She Blows, Part 1

0:00:03.040 --> 0:00:08.880
<v Speaker 1>Welcome to Stuff to Blow Your Mind, a production of iHeartRadio.

0:00:13.760 --> 0:00:15.920
<v Speaker 2>Hey you welcome to Stuff to Blow Your Mind. My

0:00:16.040 --> 0:00:16.840
<v Speaker 2>name is Robert.

0:00:16.640 --> 0:00:20.720
<v Speaker 3>Lamb and I'm Joe McCormick. So a few weeks back

0:00:20.760 --> 0:00:24.079
<v Speaker 3>on the show, we did a series of episodes on

0:00:24.239 --> 0:00:28.240
<v Speaker 3>the Pacific gray whale. That series was based on some

0:00:28.440 --> 0:00:32.040
<v Speaker 3>actual travels that you and your family did rob with

0:00:32.880 --> 0:00:36.159
<v Speaker 3>where you got to encounter these wonderful beasts up close.

0:00:36.760 --> 0:00:39.360
<v Speaker 3>But ever since then, I've had a bit of a

0:00:39.800 --> 0:00:43.239
<v Speaker 3>low grade whale fever, and so based on maybe not

0:00:43.360 --> 0:00:47.280
<v Speaker 3>physical travels in the world, but literary travels of the mind,

0:00:47.720 --> 0:00:51.080
<v Speaker 3>I've been drawn back to the subject of wales. Today.

0:00:51.159 --> 0:00:55.080
<v Speaker 3>We are returning to talk not about a particular species

0:00:55.120 --> 0:00:59.760
<v Speaker 3>of whale, but about a particular anatomical feature common to wales,

0:01:00.160 --> 0:01:04.760
<v Speaker 3>the respiratory orifice of the cetacean, known as the spout

0:01:04.920 --> 0:01:08.640
<v Speaker 3>or the spiracle, or most commonly today, the blowhole.

0:01:09.120 --> 0:01:12.000
<v Speaker 2>That's right, one of the most famous features of the whale.

0:01:12.040 --> 0:01:14.560
<v Speaker 2>If you know nothing else about the whale, if your

0:01:14.640 --> 0:01:18.640
<v Speaker 2>knowledge of whale anatomy is limited to cartoons and emojis,

0:01:19.160 --> 0:01:23.480
<v Speaker 2>you know something of the spout, you may have the

0:01:23.520 --> 0:01:25.640
<v Speaker 2>wrong idea of what it's all about, and we'll get

0:01:25.680 --> 0:01:28.120
<v Speaker 2>into that in this episode. But you know that whales

0:01:28.240 --> 0:01:29.360
<v Speaker 2>do this right.

0:01:29.440 --> 0:01:32.720
<v Speaker 3>The saying is not thar she filter feeds. The saying

0:01:32.880 --> 0:01:36.560
<v Speaker 3>is thar she blows right now. I actually became interested

0:01:36.600 --> 0:01:40.600
<v Speaker 3>in this subject because I was reading a chapter in

0:01:40.720 --> 0:01:45.119
<v Speaker 3>the great American whale novel Moby Dick by Herman Melville.

0:01:45.720 --> 0:01:50.400
<v Speaker 3>Basic plot summary. A wandering young man named Ishmael and

0:01:50.560 --> 0:01:54.360
<v Speaker 3>his new companion quek weig enlist on a whale ship

0:01:55.560 --> 0:01:58.720
<v Speaker 3>captained by a man named Ahab, who is on a

0:01:58.800 --> 0:02:04.800
<v Speaker 3>revenge quest against a sperm whale that previously removed his leg.

0:02:05.160 --> 0:02:07.080
<v Speaker 2>A classic tale. Even if you're not familiar with the

0:02:07.440 --> 0:02:09.720
<v Speaker 2>with the book itself, you've probably seen one of the

0:02:09.760 --> 0:02:11.840
<v Speaker 2>many film adaptations over the years.

0:02:12.160 --> 0:02:14.720
<v Speaker 3>Yes, though, you know if you just watch a movie,

0:02:15.160 --> 0:02:17.760
<v Speaker 3>there is a quality to the text of Moby Dick

0:02:17.840 --> 0:02:20.280
<v Speaker 3>that probably won't quite come across because this is not

0:02:20.960 --> 0:02:24.600
<v Speaker 3>a strictly plot oriented story. It's not a novel where

0:02:24.600 --> 0:02:26.880
<v Speaker 3>the action of the plot always just kind of proceeds

0:02:26.919 --> 0:02:31.080
<v Speaker 3>ahead at a predictable pace. Many chapters of this book

0:02:31.520 --> 0:02:38.000
<v Speaker 3>are more like self contained informational or meditational essays on

0:02:38.200 --> 0:02:41.160
<v Speaker 3>subjects of all kinds. So there are little There are

0:02:41.200 --> 0:02:43.800
<v Speaker 3>chapters that are essays about the tackle and equipment of

0:02:43.880 --> 0:02:47.640
<v Speaker 3>whaling vessels, the monkey rope, the harpoon that you know,

0:02:47.880 --> 0:02:51.320
<v Speaker 3>all the different things. There are chapters about the accuracy

0:02:51.600 --> 0:02:56.760
<v Speaker 3>or relative lack thereof, of whale illustrations in books. There's

0:02:56.760 --> 0:03:00.760
<v Speaker 3>a chapter about clam chowder. There are chapters about way heads.

0:03:00.800 --> 0:03:04.080
<v Speaker 3>There's one chapter where he does phrenology on a whale head.

0:03:04.639 --> 0:03:09.800
<v Speaker 3>There are chapters about whale skin, whale tails, et cetera. Now,

0:03:10.000 --> 0:03:14.160
<v Speaker 3>when it comes to the quote seatology of Moby Dick,

0:03:15.280 --> 0:03:17.560
<v Speaker 3>it seems to be Melville is all over the place,

0:03:17.639 --> 0:03:21.680
<v Speaker 3>sourcing his information in some cases from published works of

0:03:21.760 --> 0:03:25.920
<v Speaker 3>naturalists of his day, which was, of course, of you know,

0:03:26.000 --> 0:03:28.400
<v Speaker 3>we would judge, by the scientific standards of today, of

0:03:28.480 --> 0:03:31.760
<v Speaker 3>mixed quality to begin with. And in other cases he

0:03:31.800 --> 0:03:34.320
<v Speaker 3>seems to be relying on kind of the trade knowledge

0:03:34.360 --> 0:03:39.040
<v Speaker 3>of sailors and whalemen. Some of his biological observations I

0:03:39.080 --> 0:03:44.120
<v Speaker 3>think seem fairly keen, and others are bizarre or downright implausible.

0:03:44.600 --> 0:03:47.960
<v Speaker 3>A very commonly cited example, though I don't know if

0:03:47.960 --> 0:03:51.080
<v Speaker 3>this represents the personal belief of Melville of the author

0:03:51.200 --> 0:03:54.040
<v Speaker 3>the narrator, Ishmael is firmly committed to the claim that

0:03:54.160 --> 0:03:58.080
<v Speaker 3>whales are fish. They are not, They're mammals. In fact,

0:03:58.840 --> 0:04:01.280
<v Speaker 3>I was reading about this in a paper called Herman

0:04:01.360 --> 0:04:05.520
<v Speaker 3>Melville Marine Biologist, by Harold Morowitz, published in The Biological

0:04:05.520 --> 0:04:10.200
<v Speaker 3>Bulletin in twenty eleven about the idea that whales are mammals.

0:04:10.240 --> 0:04:14.200
<v Speaker 3>Morowitz rights, quote this was not a new finding. Aristotle

0:04:14.360 --> 0:04:18.280
<v Speaker 3>in History of Animals some twenty two hundred years earlier. Oh, actually,

0:04:18.279 --> 0:04:23.160
<v Speaker 3>he's saying earlier than Linnaeus had noticed the difference between

0:04:23.160 --> 0:04:26.760
<v Speaker 3>members of the whales and porpoises and other marine inhabitants

0:04:26.920 --> 0:04:30.680
<v Speaker 3>the fish. He based this distinction on the cetaceans having

0:04:30.760 --> 0:04:34.679
<v Speaker 3>the mammalian properties of being warm blooded, breathing air through lungs,

0:04:34.920 --> 0:04:38.920
<v Speaker 3>and feeding the young through memory glands. Melville, though through

0:04:39.000 --> 0:04:42.960
<v Speaker 3>his spokesman Ishmael, strongly disagreed and was willing to place

0:04:43.040 --> 0:04:46.360
<v Speaker 3>the anecdotal knowledge of a seaman against the formal knowledge

0:04:46.360 --> 0:04:49.480
<v Speaker 3>of academics. He insists that a whale is quote a

0:04:49.600 --> 0:04:52.239
<v Speaker 3>spouting fish with a horizontal tail.

0:04:52.760 --> 0:04:54.599
<v Speaker 2>Well, I guess this kind of falls under the whole

0:04:55.480 --> 0:04:59.880
<v Speaker 2>semen versus landsman sort of thing, right, like woad Aristotle, No,

0:05:00.480 --> 0:05:02.320
<v Speaker 2>never served on a whaling vessel.

0:05:02.279 --> 0:05:04.279
<v Speaker 3>That's right. This kind of came up in our Grey

0:05:04.279 --> 0:05:07.080
<v Speaker 3>Whale series two. What was the context? So was it

0:05:07.800 --> 0:05:10.919
<v Speaker 3>arguments about how aggressive actually the gray whale is.

0:05:11.480 --> 0:05:15.040
<v Speaker 2>Yeah, if you go by the accounts of whalers who

0:05:15.360 --> 0:05:18.680
<v Speaker 2>did get to you know, throw in their their, their, their,

0:05:18.839 --> 0:05:23.120
<v Speaker 2>their two cents and name various things about whales as well. Yeah,

0:05:23.279 --> 0:05:26.200
<v Speaker 2>according to them, the gray whale is just an absolute monster,

0:05:27.040 --> 0:05:30.080
<v Speaker 2>you know, that will just absolutely destroy anything in its path,

0:05:30.880 --> 0:05:33.760
<v Speaker 2>which it's certainly capable of, as we discuss if it

0:05:33.760 --> 0:05:37.280
<v Speaker 2>has been provoked, but if it's not provoked, it as

0:05:37.320 --> 0:05:39.520
<v Speaker 2>a very peaceful and curious creature. Right.

0:05:39.680 --> 0:05:43.400
<v Speaker 3>So anyway, the narrator Ishmael's claims about whales, while in

0:05:43.400 --> 0:05:47.560
<v Speaker 3>my opinion always fascinating, are a mixed bag of some

0:05:47.760 --> 0:05:53.560
<v Speaker 3>sharp observations, some weird untruths, as well as ambiguous claims

0:05:53.560 --> 0:05:56.440
<v Speaker 3>somewhere in the middle. And I came across a number

0:05:56.480 --> 0:06:00.400
<v Speaker 3>of all of the above recently in chapter eighty five

0:06:00.480 --> 0:06:04.040
<v Speaker 3>of this book, which is called the Fountain. This chapter

0:06:04.320 --> 0:06:08.240
<v Speaker 3>is a consideration of the blowhole of the whale and

0:06:08.279 --> 0:06:11.680
<v Speaker 3>the towering exhalations from it, which, by the way, are

0:06:11.800 --> 0:06:15.440
<v Speaker 3>of great significance to whalers, because the spoutings of the

0:06:15.440 --> 0:06:19.039
<v Speaker 3>blowhole are what whalers use to cite the whales out

0:06:19.080 --> 0:06:20.640
<v Speaker 3>on the open sea and track them down.

0:06:21.240 --> 0:06:24.279
<v Speaker 2>Yeah, that's the varsy blows, right. I love that this

0:06:24.400 --> 0:06:26.479
<v Speaker 2>chapter is called the Fountain because, as we'll discuss, like

0:06:26.640 --> 0:06:29.080
<v Speaker 2>even the title of this chapter is deceptive.

0:06:29.480 --> 0:06:32.000
<v Speaker 3>Right, So Rob, if you don't mind, I'm gonna I'm

0:06:32.000 --> 0:06:34.679
<v Speaker 3>gonna set the themes here by reading the first couple

0:06:34.680 --> 0:06:36.960
<v Speaker 3>of paragraphs of this chapter excellently.

0:06:37.000 --> 0:06:39.200
<v Speaker 2>Are you gonna use the sailor voice from that?

0:06:40.200 --> 0:06:44.760
<v Speaker 3>I'm not gonna do pirate voice. Okay, I'm not strong enough. Okay.

0:06:44.800 --> 0:06:47.240
<v Speaker 3>So this is from Moby Dick by Herman Melville, the

0:06:47.360 --> 0:06:51.359
<v Speaker 3>chapter The Fountain that for six thousand years, and no

0:06:51.400 --> 0:06:54.640
<v Speaker 3>one knows how many millions of ages before, the great

0:06:54.720 --> 0:06:58.320
<v Speaker 3>whales should have been spouting all over the sea and

0:06:58.440 --> 0:07:02.080
<v Speaker 3>sprinkling and mystifying the gardens of the deep, as with

0:07:02.160 --> 0:07:05.880
<v Speaker 3>so many sprinkling or mystifying pots, And that for some

0:07:06.000 --> 0:07:09.800
<v Speaker 3>centuries back, thousands of hunters should have been close by

0:07:09.960 --> 0:07:13.640
<v Speaker 3>the fountain of the Whale, watching these sprinklings and spoutings,

0:07:13.960 --> 0:07:16.760
<v Speaker 3>that all this should be. And yet that down to

0:07:16.840 --> 0:07:20.440
<v Speaker 3>this blessed minute fifteen and a quarter minutes past one

0:07:20.480 --> 0:07:24.200
<v Speaker 3>o'clock pm on this sixteenth day of December eighty eighteen

0:07:24.320 --> 0:07:28.640
<v Speaker 3>fifty one, it should still remain a problem whether these

0:07:28.680 --> 0:07:33.720
<v Speaker 3>spoutings are after all really water or nothing but vapor.

0:07:34.200 --> 0:07:37.280
<v Speaker 3>This is surely a noteworthy thing. And then, skipping a

0:07:37.280 --> 0:07:41.160
<v Speaker 3>bit into the next paragraph, everyone knows that, by the

0:07:41.200 --> 0:07:45.360
<v Speaker 3>peculiar cunning of their gills, the finny tribes in general

0:07:45.800 --> 0:07:48.880
<v Speaker 3>breathe the air, which at all times is combined with

0:07:48.960 --> 0:07:52.440
<v Speaker 3>the element in which they swim. Hence, a herring or

0:07:52.440 --> 0:07:55.400
<v Speaker 3>a cod might live a century and never once raise

0:07:55.480 --> 0:07:59.200
<v Speaker 3>its head above the surface. But owing to his marked

0:07:59.280 --> 0:08:02.600
<v Speaker 3>internal sar structure, which gives him regular lungs like a

0:08:02.720 --> 0:08:06.680
<v Speaker 3>human being's, the whale can only live by inhaling the

0:08:06.800 --> 0:08:11.960
<v Speaker 3>disengaged air in the open atmosphere, wherefore the necessity for

0:08:12.120 --> 0:08:16.160
<v Speaker 3>his periodical visits to the upper world. But he cannot

0:08:16.200 --> 0:08:19.320
<v Speaker 3>in any degree breathe through his mouth, for in his

0:08:19.520 --> 0:08:22.920
<v Speaker 3>ordinary attitude, the sperm whale's mouth is buried at least

0:08:22.960 --> 0:08:26.000
<v Speaker 3>eight feet beneath the surface. And what is still more,

0:08:26.320 --> 0:08:30.080
<v Speaker 3>his windpipe has no connection with his mouth. No, he

0:08:30.240 --> 0:08:34.040
<v Speaker 3>breathes through his spiracle alone, and this is on the

0:08:34.080 --> 0:08:35.040
<v Speaker 3>top of his head.

0:08:35.679 --> 0:08:38.040
<v Speaker 2>Now, so far, so good. I mean, nothing too out

0:08:38.080 --> 0:08:39.559
<v Speaker 2>of whack and all that, I think.

0:08:39.679 --> 0:08:43.000
<v Speaker 3>Oh sure, And I think this does help give you

0:08:43.040 --> 0:08:46.000
<v Speaker 3>a sense of some of the wide eyed admiration and

0:08:46.360 --> 0:08:49.600
<v Speaker 3>the power of the mystery in describing whales at this

0:08:49.720 --> 0:08:53.040
<v Speaker 3>time when, like documentary footage was not a thing that

0:08:53.160 --> 0:08:56.680
<v Speaker 3>existed yet. You know, people couldn't like see planet Earth

0:08:56.720 --> 0:08:59.360
<v Speaker 3>and see what whales looked like. So you know, most

0:08:59.400 --> 0:09:02.320
<v Speaker 3>people probably never would have seen any whale in person.

0:09:02.640 --> 0:09:05.000
<v Speaker 3>Even if you had, you probably would have only seen them,

0:09:05.200 --> 0:09:08.640
<v Speaker 3>you know, breaching the surface occasionally or spouting from below.

0:09:09.000 --> 0:09:12.240
<v Speaker 3>Like you wouldn't have the kind of familiarity with whales

0:09:12.679 --> 0:09:15.720
<v Speaker 3>that even the average person has today just through being

0:09:15.720 --> 0:09:17.760
<v Speaker 3>able to see them in movies and documentaries.

0:09:18.160 --> 0:09:21.400
<v Speaker 2>Right, And of course, depending on when you're trying, you're

0:09:21.400 --> 0:09:24.200
<v Speaker 2>looking out to the ocean and potentially seeing a whale,

0:09:24.200 --> 0:09:27.000
<v Speaker 2>that their ability to see them might be greatly reduced

0:09:27.040 --> 0:09:32.400
<v Speaker 2>by human whaling enterprise, which you know certainly initially greatly

0:09:32.440 --> 0:09:34.640
<v Speaker 2>reduced the number of whales that would have been close

0:09:34.679 --> 0:09:37.520
<v Speaker 2>to shore and then eventually got into those populations that

0:09:37.559 --> 0:09:38.520
<v Speaker 2>were further from shore.

0:09:38.840 --> 0:09:42.839
<v Speaker 3>Yeah. Now, so this chapter on the fountain, on one hand,

0:09:42.920 --> 0:09:45.880
<v Speaker 3>it simply made me want to investigate the blowhole and

0:09:45.960 --> 0:09:49.640
<v Speaker 3>whale respiration as a subject in itself, which we will do.

0:09:50.320 --> 0:09:54.319
<v Speaker 3>But this chapter also raises a number of controversies and

0:09:54.720 --> 0:09:58.600
<v Speaker 3>Strange claims that I wanted to further investigate. One of

0:09:58.640 --> 0:10:03.560
<v Speaker 3>the controversies that Melville opens the chapter by acknowledging is

0:10:03.600 --> 0:10:06.680
<v Speaker 3>the question of what is the spout or what is

0:10:06.720 --> 0:10:08.199
<v Speaker 3>it that comes out of the spout? I guess it

0:10:08.240 --> 0:10:10.800
<v Speaker 3>depends on what you're using the word spout to refer

0:10:10.880 --> 0:10:14.040
<v Speaker 3>to there. But yet, what is coming out of the blowhole?

0:10:14.200 --> 0:10:17.760
<v Speaker 3>Is it water or is it, as Ishmael says, quote,

0:10:17.800 --> 0:10:20.720
<v Speaker 3>nothing but vapor. That's a question that did seem to

0:10:20.720 --> 0:10:23.400
<v Speaker 3>be a live one to some degree in Melville's day.

0:10:23.800 --> 0:10:27.160
<v Speaker 3>But also as far as Strange claims go, here's one

0:10:27.200 --> 0:10:29.040
<v Speaker 3>for you I want to read from later in the chapter.

0:10:29.120 --> 0:10:31.240
<v Speaker 2>Are you ready, Rob, Yes, let's have it.

0:10:31.440 --> 0:10:34.440
<v Speaker 3>Okay, so he says, quote, nor is it at all

0:10:34.480 --> 0:10:37.560
<v Speaker 3>prudent for the hunter to be over curious touching the

0:10:37.640 --> 0:10:41.000
<v Speaker 3>precise nature of the whale spout? It will not do

0:10:41.200 --> 0:10:44.679
<v Speaker 3>for him to be peering into it and putting his

0:10:44.920 --> 0:10:47.760
<v Speaker 3>face in it. You cannot go with your pitcher to

0:10:47.840 --> 0:10:50.640
<v Speaker 3>this fountain and fill it and bring it away, For

0:10:50.720 --> 0:10:54.439
<v Speaker 3>even when coming into slight contact with the outer vapory

0:10:54.559 --> 0:10:58.079
<v Speaker 3>shreds of the jet, which will often happen, your skin

0:10:58.160 --> 0:11:02.440
<v Speaker 3>will feverishly smart the acridness of the thing so touching it.

0:11:02.840 --> 0:11:06.439
<v Speaker 3>And I know one who coming into still closer contact

0:11:06.440 --> 0:11:09.920
<v Speaker 3>with the spout, whether with some scientific object in view

0:11:10.040 --> 0:11:14.200
<v Speaker 3>or otherwise, I cannot say, the skin peeled off from

0:11:14.240 --> 0:11:18.280
<v Speaker 3>his cheek and arm. Wherefore, among Whalemen the spout is

0:11:18.320 --> 0:11:22.760
<v Speaker 3>deemed poisonous. They try to evade it. Another thing I

0:11:22.800 --> 0:11:25.240
<v Speaker 3>have heard it said, and I do not much doubt

0:11:25.280 --> 0:11:28.480
<v Speaker 3>it that if the jet is fairly spouted into your eyes,

0:11:28.600 --> 0:11:32.839
<v Speaker 3>it will blind you. The wisest thing the investigator can do, then,

0:11:33.200 --> 0:11:39.040
<v Speaker 3>it seems to me, is to let this deadly spout alone. Okay,

0:11:39.080 --> 0:11:40.840
<v Speaker 3>So I read that, and I was like, what is

0:11:40.880 --> 0:11:43.680
<v Speaker 3>going on here? This sounds wrong to me. But I

0:11:43.800 --> 0:11:46.840
<v Speaker 3>wonder if there's some kind of basis to it, or

0:11:46.960 --> 0:11:49.240
<v Speaker 3>some way this rumor could have gotten started that would

0:11:49.240 --> 0:11:52.760
<v Speaker 3>be identifiable. I don't know. So that's another thing I

0:11:52.800 --> 0:11:58.679
<v Speaker 3>want to explore. The allegedly deadly, poisonous blinding spout steals

0:11:58.720 --> 0:12:02.600
<v Speaker 3>your power of sight, melts away your flesh like xenomorph blood.

0:12:03.000 --> 0:12:08.199
<v Speaker 2>This is something else. This goes beyond discussions of water

0:12:08.360 --> 0:12:14.560
<v Speaker 2>versus mists, because this is just not true. You know,

0:12:14.720 --> 0:12:17.439
<v Speaker 2>we mentioned my time with my family down in Mexico

0:12:17.480 --> 0:12:20.360
<v Speaker 2>getting to observe the gray whales. So when we were

0:12:20.360 --> 0:12:23.440
<v Speaker 2>out there, there would often be multiple gray whales around

0:12:23.440 --> 0:12:26.600
<v Speaker 2>the boat constantly, you know, breathing close to the surface.

0:12:26.640 --> 0:12:30.199
<v Speaker 2>And I should point out these were casual breaths. These

0:12:30.200 --> 0:12:34.959
<v Speaker 2>were not breaths that were occurring after deep dive or

0:12:35.000 --> 0:12:40.360
<v Speaker 2>anything like that, but still pretty explosive exhalations, a lot

0:12:40.400 --> 0:12:43.040
<v Speaker 2>of mist floating around in the air. I definitely got

0:12:43.080 --> 0:12:47.240
<v Speaker 2>whale spout on me from these mists, and I saw

0:12:47.360 --> 0:12:51.800
<v Speaker 2>on more than one occasion somebody take a rather stiff

0:12:51.920 --> 0:12:55.360
<v Speaker 2>blast of the whale spout directly in the face. Now

0:12:55.360 --> 0:12:57.920
<v Speaker 2>I don't recall if they had sunglasses on or what,

0:12:58.320 --> 0:13:01.480
<v Speaker 2>but it was it was alarming, but it wasn't anything

0:13:01.520 --> 0:13:04.760
<v Speaker 2>that caused undue grief or stress. It was one of

0:13:04.800 --> 0:13:07.640
<v Speaker 2>those things you kind of laugh about afterwards. You wash

0:13:07.679 --> 0:13:11.680
<v Speaker 2>off your face. And some of my fellow whale watchers,

0:13:11.679 --> 0:13:13.280
<v Speaker 2>they really took it as kind of a point of pride,

0:13:13.320 --> 0:13:15.079
<v Speaker 2>you know, they're like, they referred to it as a

0:13:15.160 --> 0:13:18.400
<v Speaker 2>kind of baptism. You know, you're just, hey, you wanted

0:13:18.440 --> 0:13:20.360
<v Speaker 2>to get close to these creatures. It doesn't get a

0:13:20.360 --> 0:13:21.160
<v Speaker 2>lot closer than that.

0:13:21.480 --> 0:13:23.480
<v Speaker 3>But what about your skin? Did it peel off or

0:13:23.480 --> 0:13:24.560
<v Speaker 3>do you still have your skin on?

0:13:25.120 --> 0:13:27.320
<v Speaker 2>I still have all, I mean all my skin was

0:13:27.360 --> 0:13:30.679
<v Speaker 2>intact following each of these episodes out on the water.

0:13:31.040 --> 0:13:33.760
<v Speaker 2>People who were blasted full on in the face also

0:13:33.800 --> 0:13:36.960
<v Speaker 2>were fine. So yeah, I mean, the only thing that

0:13:36.960 --> 0:13:38.760
<v Speaker 2>comes to mind is, I guess it seems possible that

0:13:38.800 --> 0:13:40.920
<v Speaker 2>someone could have in some sort of an allergic reaction

0:13:41.960 --> 0:13:46.240
<v Speaker 2>to something in the whale spout, but I've never heard

0:13:46.320 --> 0:13:47.320
<v Speaker 2>this is actually occurring.

0:13:47.800 --> 0:13:49.920
<v Speaker 3>Yeah, it seems to be based on everything I've read

0:13:49.920 --> 0:13:52.680
<v Speaker 3>that You're right, I could not find any evidence that

0:13:52.720 --> 0:13:56.359
<v Speaker 3>what comes out of a whales blowhole is actually poisonous

0:13:56.440 --> 0:13:59.000
<v Speaker 3>or acrid to the point that it will will burn

0:13:59.040 --> 0:14:01.960
<v Speaker 3>your skin away. But we can still come back to this,

0:14:02.000 --> 0:14:04.240
<v Speaker 3>and I don't know, maybe at least try to investigate

0:14:04.520 --> 0:14:07.440
<v Speaker 3>anything we can figure out about the claim itself, despite

0:14:07.440 --> 0:14:09.400
<v Speaker 3>the fact that it seems obviously not true.

0:14:09.840 --> 0:14:22.720
<v Speaker 2>Right, Let's get into the basic science of whale spout

0:14:22.840 --> 0:14:26.520
<v Speaker 2>or whale blow. What is whale blow well? Its discussed

0:14:26.520 --> 0:14:29.840
<v Speaker 2>by Mark Carwadine in The Handbook of Whales, Dolphins and Porpoises,

0:14:30.320 --> 0:14:32.920
<v Speaker 2>an excellent book that I referred to several times in

0:14:33.200 --> 0:14:36.800
<v Speaker 2>our previous series on the gray whale. Whale blow or

0:14:36.840 --> 0:14:39.320
<v Speaker 2>whale spout refers to both the whales act of breathing

0:14:39.520 --> 0:14:44.960
<v Speaker 2>explosive exhalation followed by immediate inhalation, and also it refers

0:14:44.960 --> 0:14:47.600
<v Speaker 2>to the visible misty cloud that hangs in the air

0:14:47.680 --> 0:14:51.880
<v Speaker 2>afterwards quote condensed water, a fine spray of mucus from

0:14:51.880 --> 0:14:55.720
<v Speaker 2>inside the lungs, and seawater trapped in the blowholes. And

0:14:55.760 --> 0:14:57.320
<v Speaker 2>I think this was one of the main reasons that

0:14:57.520 --> 0:15:02.280
<v Speaker 2>I did take a little extra care to avoid staring

0:15:02.320 --> 0:15:04.280
<v Speaker 2>down over the side of the boat at a blowhole,

0:15:04.320 --> 0:15:06.280
<v Speaker 2>because I did not want to be sneezed full on

0:15:06.360 --> 0:15:10.560
<v Speaker 2>in the face by one of these these leviathans. But

0:15:10.880 --> 0:15:13.560
<v Speaker 2>I was not deathly afraid of it, and I'm fearful

0:15:13.680 --> 0:15:14.640
<v Speaker 2>of my sight.

0:15:15.040 --> 0:15:16.960
<v Speaker 3>Well sure, and you might want to avoid that, not

0:15:17.080 --> 0:15:20.480
<v Speaker 3>just because of the forcefulness of the blow. But for

0:15:20.600 --> 0:15:22.920
<v Speaker 3>another I mean one of the same reasons you wouldn't

0:15:22.920 --> 0:15:25.320
<v Speaker 3>want a human to sneeze in your face, which is

0:15:25.360 --> 0:15:29.000
<v Speaker 3>that like when somebody sneezes, that mucus might contain significant

0:15:29.040 --> 0:15:31.720
<v Speaker 3>loading of bacteria, and yeah, you don't know what that's

0:15:31.800 --> 0:15:32.160
<v Speaker 3>going to be.

0:15:33.560 --> 0:15:36.080
<v Speaker 2>Yeah. Yeah, so I avoided it, but I also didn't

0:15:36.080 --> 0:15:38.240
<v Speaker 2>feel bad about I certainly got plenty of the mist

0:15:38.280 --> 0:15:40.880
<v Speaker 2>on me, because if you have multiple gray whales in

0:15:40.920 --> 0:15:43.440
<v Speaker 2>your vicinity, you're just in a cloud of the stuff.

0:15:43.480 --> 0:15:46.400
<v Speaker 2>So it's unavoidable. Yeah, so, you know, breaking it down

0:15:46.440 --> 0:15:49.120
<v Speaker 2>to brass tax here the obvious whales. Of course, as

0:15:49.160 --> 0:15:51.320
<v Speaker 2>we've stated aquatic mammals, they have to come to the

0:15:51.320 --> 0:15:54.760
<v Speaker 2>surface to breathe, but hold their breath while underwater, and

0:15:54.840 --> 0:15:57.600
<v Speaker 2>according to Hammond at All in the book Whales Their

0:15:57.600 --> 0:16:01.840
<v Speaker 2>Biology and Behavior, whales consciously can they're breathing, unlike most mammals,

0:16:01.880 --> 0:16:06.000
<v Speaker 2>who are reflex breathers like us. They breathe through their blowholes,

0:16:06.080 --> 0:16:10.520
<v Speaker 2>which are sometimes called their nares, which are essentially evolved

0:16:10.560 --> 0:16:15.360
<v Speaker 2>nostrils which can be muscularly opened and closed, and as

0:16:15.400 --> 0:16:17.640
<v Speaker 2>the authors point out, quote the air pressure in the

0:16:17.720 --> 0:16:20.880
<v Speaker 2>nasal passage is higher than the ambient pressure at the surface,

0:16:21.280 --> 0:16:24.600
<v Speaker 2>leading to the explosive release of air from the blowhole.

0:16:25.080 --> 0:16:28.880
<v Speaker 2>The exhaled air from the whales inside is warmer than

0:16:28.920 --> 0:16:32.280
<v Speaker 2>the surrounding air and carries moisture, which condenses into the

0:16:32.360 --> 0:16:35.200
<v Speaker 2>visible blow that so often is the first tell tale

0:16:35.280 --> 0:16:38.000
<v Speaker 2>sign of a whale. Now, as we've discussed in the

0:16:38.000 --> 0:16:41.840
<v Speaker 2>show before, baileen whales have two holes, while toothed whales

0:16:41.880 --> 0:16:46.119
<v Speaker 2>have only one. Baileane whales also have a raised blowhole

0:16:46.200 --> 0:16:50.840
<v Speaker 2>with a frontal splash guard. It's the explosive exhalation and

0:16:50.920 --> 0:16:54.120
<v Speaker 2>quick inhalation takes a mere second in the smaller whales

0:16:54.120 --> 0:16:56.640
<v Speaker 2>in just a few seconds in the giant. So there's

0:16:56.640 --> 0:17:00.320
<v Speaker 2>a real economy of breathing in all of this. You know,

0:17:00.360 --> 0:17:03.080
<v Speaker 2>you come up to the surface, and contrary to a

0:17:03.080 --> 0:17:05.400
<v Speaker 2>lot of the he illustrations of whales, their whole head

0:17:05.560 --> 0:17:08.560
<v Speaker 2>does not come up. I mean, they can do some

0:17:08.600 --> 0:17:10.919
<v Speaker 2>of this, but it's not necessary for breathing. All they

0:17:10.960 --> 0:17:12.280
<v Speaker 2>have to do is just get the top of their

0:17:12.320 --> 0:17:16.080
<v Speaker 2>head that little blowhole above the water. To pull this

0:17:16.200 --> 0:17:18.600
<v Speaker 2>off in a manner of seconds and according to the

0:17:18.680 --> 0:17:22.040
<v Speaker 2>National Marine Life Center, just one exhalation pretty much empties

0:17:22.080 --> 0:17:26.320
<v Speaker 2>of whale's entire lungs. One of our exhalations only empties

0:17:26.400 --> 0:17:27.320
<v Speaker 2>part of our lungs.

0:17:27.800 --> 0:17:30.280
<v Speaker 3>Now, this is an interesting fact that I thought was

0:17:30.280 --> 0:17:32.200
<v Speaker 3>worth looking at a little bit deeper, this thing about

0:17:32.200 --> 0:17:35.840
<v Speaker 3>whale lungs and capacity and the extent to which that

0:17:35.880 --> 0:17:39.320
<v Speaker 3>capacity is used. So I started thinking about the comparison

0:17:39.400 --> 0:17:45.040
<v Speaker 3>to underwater breath holding in humans. Most people who have

0:17:45.359 --> 0:17:48.879
<v Speaker 3>no special training can comfortably hold their breath underwater for

0:17:48.960 --> 0:17:52.360
<v Speaker 3>about a minute. I've seen estimates ranging from like one

0:17:52.359 --> 0:17:55.360
<v Speaker 3>to two minutes to thirty to ninety seconds. I don't

0:17:55.400 --> 0:17:57.840
<v Speaker 3>know if that depends on how old the population you're

0:17:57.840 --> 0:18:00.440
<v Speaker 3>looking at is, or you know, how physically fit they are,

0:18:00.480 --> 0:18:03.000
<v Speaker 3>but still, you know, the average person is not going

0:18:03.040 --> 0:18:05.040
<v Speaker 3>to be able to stay under that long, maybe a

0:18:05.040 --> 0:18:09.520
<v Speaker 3>couple minutes. Now, with conditioning, humans can stay under water

0:18:09.640 --> 0:18:11.919
<v Speaker 3>a lot longer. I was actually I was trying to

0:18:11.920 --> 0:18:16.560
<v Speaker 3>find the current human record for underwater breath holding, and

0:18:16.760 --> 0:18:20.760
<v Speaker 3>according to Guinness World Records, the record holder is a

0:18:20.840 --> 0:18:25.760
<v Speaker 3>Croatian man named Budimir Shobot, who on March twenty seventh,

0:18:25.800 --> 0:18:30.280
<v Speaker 3>twenty twenty one, stayed underwater for twenty four minutes and

0:18:30.320 --> 0:18:34.040
<v Speaker 3>thirty seven seconds, and at first I was like, wait

0:18:34.080 --> 0:18:38.359
<v Speaker 3>a second, that just cannot be correct. That is too long.

0:18:38.760 --> 0:18:42.399
<v Speaker 3>That is more than two full playthroughs of the album

0:18:42.560 --> 0:18:46.160
<v Speaker 3>length version, not the single version of I'd Do Anything

0:18:46.240 --> 0:18:49.879
<v Speaker 3>for Love, but I won't do that. Can't imagine it.

0:18:52.160 --> 0:18:55.520
<v Speaker 3>And to some degree my instincts were confirmed because I

0:18:55.560 --> 0:18:59.600
<v Speaker 3>realized there's a big caveat here Showbot's record and many

0:18:59.680 --> 0:19:02.280
<v Speaker 3>other people who compete for this particular record. This was

0:19:02.320 --> 0:19:09.200
<v Speaker 3>for a special category of breath holding, oxygen assisted voluntary

0:19:09.240 --> 0:19:12.560
<v Speaker 3>breath holding. So in this category, before you go under

0:19:12.640 --> 0:19:16.600
<v Speaker 3>the water, you can spend up to thirty minutes ventilating

0:19:16.640 --> 0:19:20.359
<v Speaker 3>with one hundred percent pure oxygen from a tank. So

0:19:20.480 --> 0:19:24.879
<v Speaker 3>this is a pre dive hyper ventilation process to like

0:19:25.200 --> 0:19:29.840
<v Speaker 3>superoxygenate your body. Of course, one hundred percent pure oxygen's

0:19:29.920 --> 0:19:32.320
<v Speaker 3>much higher than the content in the air. We normally

0:19:32.359 --> 0:19:35.520
<v Speaker 3>breathe at twenty one percent oxygen. So yeah, the people

0:19:35.560 --> 0:19:38.480
<v Speaker 3>who do this, they are super oxygenating their body before

0:19:38.480 --> 0:19:42.000
<v Speaker 3>they start. And also, of course this guy was highly trained.

0:19:42.000 --> 0:19:44.720
<v Speaker 3>He spent more than three years training six days a week.

0:19:45.000 --> 0:19:47.000
<v Speaker 3>So twenty four and a half minutes is the record

0:19:47.040 --> 0:19:51.919
<v Speaker 3>for this technology assisted hyper ventilation category. But I was

0:19:51.960 --> 0:19:55.359
<v Speaker 3>trying to find the not technology assisted version, and I

0:19:55.760 --> 0:19:59.040
<v Speaker 3>found a twenty twenty three article by a University of

0:19:59.080 --> 0:20:03.840
<v Speaker 3>Windsor kinesio pologist named Anthony Bain, and he writes that

0:20:03.880 --> 0:20:07.000
<v Speaker 3>the record for breath holding if you don't pregame with

0:20:07.080 --> 0:20:11.359
<v Speaker 3>pure oxygen, is less than half that. It is possibly

0:20:11.440 --> 0:20:14.159
<v Speaker 3>eleven minutes and thirty five seconds for men, which is

0:20:14.200 --> 0:20:17.880
<v Speaker 3>a record held by Stefan Mifsud. Though there's some dispute

0:20:17.880 --> 0:20:20.280
<v Speaker 3>about this one because there's also a guy named Bronco

0:20:20.359 --> 0:20:24.280
<v Speaker 3>Petrovitch who holds a record accredited by Guinness but not

0:20:24.359 --> 0:20:27.640
<v Speaker 3>by this other organization, a governing body called the International

0:20:27.680 --> 0:20:31.560
<v Speaker 3>Association for the Development of Apnea, which apparently does some

0:20:31.680 --> 0:20:35.320
<v Speaker 3>kind of certification of these records. And I don't want

0:20:35.320 --> 0:20:37.439
<v Speaker 3>to get drawn into a knife fight about which record

0:20:37.480 --> 0:20:42.119
<v Speaker 3>is legitimate, but let's just say the unassisted record for

0:20:42.240 --> 0:20:45.359
<v Speaker 3>men is somewhere between the eleven to twelve minute range,

0:20:45.760 --> 0:20:48.760
<v Speaker 3>and the record for women is nine minutes and two seconds,

0:20:48.800 --> 0:20:51.120
<v Speaker 3>held by Natalia Mulkanova.

0:20:51.680 --> 0:20:53.480
<v Speaker 2>Yeah, we don't want to make any enemies of people

0:20:53.520 --> 0:20:54.880
<v Speaker 2>who can hold their breath this long.

0:20:55.320 --> 0:20:57.760
<v Speaker 3>That does sound dangerous, just as a side note speaking

0:20:57.800 --> 0:21:01.320
<v Speaker 3>of people who can hold their breath shockingly long time.

0:21:02.119 --> 0:21:05.000
<v Speaker 3>This article also mentioned something I hadn't heard of at all,

0:21:05.720 --> 0:21:09.720
<v Speaker 3>Apparently in preparation for the filming of Avatar Too, The

0:21:09.760 --> 0:21:14.640
<v Speaker 3>Way of Water. The actress Kate Winslet trained in underwater

0:21:14.680 --> 0:21:18.000
<v Speaker 3>breath holding for several weeks, and on set she was

0:21:18.040 --> 0:21:22.000
<v Speaker 3>able to stay underwater for more than seven minutes, something

0:21:22.040 --> 0:21:24.520
<v Speaker 3>that I am sure, no matter how much I trained,

0:21:24.560 --> 0:21:27.120
<v Speaker 3>I could not do. She did this on camera too,

0:21:27.119 --> 0:21:28.560
<v Speaker 3>and you can watch a video of it. When she

0:21:28.640 --> 0:21:30.960
<v Speaker 3>pops up at the end, she asks, am I dead?

0:21:31.200 --> 0:21:32.600
<v Speaker 3>So hats off to Kate.

0:21:33.160 --> 0:21:33.560
<v Speaker 2>Wow.

0:21:33.960 --> 0:21:35.600
<v Speaker 3>By the way, did you see Way of Water? I

0:21:35.600 --> 0:21:36.480
<v Speaker 3>haven't seen it yet.

0:21:36.680 --> 0:21:40.560
<v Speaker 2>I did. Yeah, My family and I just doing the holidays.

0:21:40.680 --> 0:21:43.159
<v Speaker 2>It was super cold. One morning we got up and

0:21:43.200 --> 0:21:48.000
<v Speaker 2>saw a morning showing of Avatar two, complete with coffee

0:21:48.320 --> 0:21:51.360
<v Speaker 2>and multiple bathroom breaks because it's super long. But yeah,

0:21:51.760 --> 0:21:54.680
<v Speaker 2>it's fun and it's got space whales in it, so

0:21:54.720 --> 0:21:56.119
<v Speaker 2>that's kind of neat. You know.

0:21:56.160 --> 0:21:59.120
<v Speaker 3>There are some whales that can stay underwater without breathing

0:21:59.200 --> 0:22:01.119
<v Speaker 3>longer than we can go in a movie without a

0:22:01.119 --> 0:22:07.240
<v Speaker 3>bathroom break at least finish coffee involved, Yes, but While

0:22:07.320 --> 0:22:10.159
<v Speaker 3>that is individual records, there are also there are whole

0:22:10.560 --> 0:22:16.199
<v Speaker 3>cultures of people who regularly do extended underwater free diving

0:22:16.240 --> 0:22:19.000
<v Speaker 3>and standard for a long period of time. I was

0:22:19.000 --> 0:22:22.920
<v Speaker 3>looking at one study quickly just to mention by Ilardo

0:22:23.280 --> 0:22:26.480
<v Speaker 3>at All published in the journal Cell in twenty eighteen

0:22:26.600 --> 0:22:30.720
<v Speaker 3>called Physiological and Genetic Adaptations to Diving in Sea Nomads.

0:22:30.840 --> 0:22:36.040
<v Speaker 3>And this study was examining adaptations in the Sama people

0:22:36.160 --> 0:22:41.840
<v Speaker 3>also known as the Bajoo, a nomadic sea living people

0:22:41.920 --> 0:22:44.920
<v Speaker 3>of Southeast Asia who are well known for their amazing

0:22:45.320 --> 0:22:49.199
<v Speaker 3>free diving skills. In some cases they spend several hours

0:22:49.240 --> 0:22:52.880
<v Speaker 3>a day underwater, not continuously, but they will stay under

0:22:52.920 --> 0:22:55.760
<v Speaker 3>continuously for minutes at a time while free diving to

0:22:56.520 --> 0:23:00.159
<v Speaker 3>retrieve things from below. And this is part of been

0:23:00.200 --> 0:23:02.640
<v Speaker 3>part of their culture for thousands of years. And so

0:23:02.680 --> 0:23:06.560
<v Speaker 3>this study did some genomic and anatomical analysis of these

0:23:06.560 --> 0:23:10.200
<v Speaker 3>people to say, well, you know, the free diving skill

0:23:10.280 --> 0:23:13.200
<v Speaker 3>is common in their culture, do they typically have any

0:23:13.359 --> 0:23:16.320
<v Speaker 3>differences that assist in that? And the study did find

0:23:16.680 --> 0:23:20.000
<v Speaker 3>quote using a comparative genomic study, we showed that natural

0:23:20.040 --> 0:23:24.560
<v Speaker 3>selection on genetic variants in the PDE one zero a

0:23:24.800 --> 0:23:29.880
<v Speaker 3>gene have increased spleen size in the bajow, providing them

0:23:29.880 --> 0:23:33.959
<v Speaker 3>with a larger reservoir of oxygenated red blood cells. We

0:23:34.000 --> 0:23:37.320
<v Speaker 3>also find evidence of strong selections specific to the bajow

0:23:37.840 --> 0:23:42.639
<v Speaker 3>on bdk RB two, a gene affecting the human diving reflex.

0:23:43.000 --> 0:23:45.360
<v Speaker 3>And so they say that people living in this culture

0:23:45.520 --> 0:23:51.800
<v Speaker 3>have developed specific adaptations for hypoxia tolerance, for being better

0:23:51.880 --> 0:23:56.040
<v Speaker 3>at going longer with holding their breath underwater. But anyway

0:23:56.080 --> 0:23:59.400
<v Speaker 3>to come back to this sort of untrained natural human

0:23:59.480 --> 0:24:02.560
<v Speaker 3>range of peace, people who don't practice diving commonly, you know,

0:24:02.600 --> 0:24:05.160
<v Speaker 3>it's maybe like one to two minutes on average, more

0:24:05.280 --> 0:24:09.040
<v Speaker 3>like nine to twelve minutes at the extreme. Some whale species,

0:24:09.080 --> 0:24:12.200
<v Speaker 3>on the other hand, have, in extreme cases, as we said,

0:24:12.280 --> 0:24:15.600
<v Speaker 3>been observed to stay under the surface for hours. And

0:24:16.400 --> 0:24:19.719
<v Speaker 3>while that might not be normal, it's normal for whales

0:24:19.720 --> 0:24:23.000
<v Speaker 3>to stand er for longer than the unassisted record for humans.

0:24:23.040 --> 0:24:26.000
<v Speaker 3>It's commonly cited that sperm whales can stay under for

0:24:26.240 --> 0:24:29.960
<v Speaker 3>ninety minutes while hunting. So the question is how do

0:24:30.040 --> 0:24:33.679
<v Speaker 3>they do this? You might naturally assume the answer is

0:24:33.720 --> 0:24:37.320
<v Speaker 3>that the whales have bigger lungs, they can take a

0:24:37.320 --> 0:24:40.560
<v Speaker 3>deeper breath hold in more air because they've got bigger lungs.

0:24:40.600 --> 0:24:44.280
<v Speaker 3>But actually that's not the case. The strange thing is,

0:24:44.400 --> 0:24:49.680
<v Speaker 3>relative to body size, whales have significantly smaller lungs than humans.

0:24:49.800 --> 0:24:54.080
<v Speaker 3>Human lungs are roughly seven percent of body size on average,

0:24:54.160 --> 0:24:56.719
<v Speaker 3>but whale lungs can be less than half that, at

0:24:56.720 --> 0:24:59.119
<v Speaker 3>about three percent of body size.

0:24:59.520 --> 0:25:01.080
<v Speaker 2>That's fast, that's a great point.

0:25:01.600 --> 0:25:03.760
<v Speaker 3>Yeah, So how does that worry the standard for like

0:25:03.960 --> 0:25:09.360
<v Speaker 3>movie length times while having lungs that are relatively smaller

0:25:09.400 --> 0:25:13.720
<v Speaker 3>than ours. So I was reading about this in a

0:25:13.760 --> 0:25:18.119
<v Speaker 3>book called The Encyclopedia of Marine Mammals edited by burned

0:25:18.160 --> 0:25:22.560
<v Speaker 3>In Puran from Academic Press two thousand and nine, and

0:25:22.640 --> 0:25:26.320
<v Speaker 3>there was a chapter on breathing in marine mammals by

0:25:26.359 --> 0:25:29.920
<v Speaker 3>the marine biologist Douglas Wartsock. And here's where we come

0:25:29.960 --> 0:25:33.040
<v Speaker 3>back to what you said, Rob about the relative difference

0:25:33.080 --> 0:25:36.960
<v Speaker 3>in how much the lung can empty. This concerns a

0:25:37.040 --> 0:25:42.080
<v Speaker 3>biological metric known as the tidal volume. Tidal volume is

0:25:42.200 --> 0:25:45.800
<v Speaker 3>the amount of air that is inhaled and exhaled during

0:25:45.920 --> 0:25:51.400
<v Speaker 3>normal respiration. It turns out most animals do not completely

0:25:51.520 --> 0:25:55.720
<v Speaker 3>empty and refill their lungs with each breath. Instead, they're

0:25:55.760 --> 0:25:59.520
<v Speaker 3>always exchanging some fractional percentage of the gas in their

0:25:59.600 --> 0:26:03.879
<v Speaker 3>lungs fresh air from the outside. What percentage of the

0:26:03.920 --> 0:26:07.960
<v Speaker 3>total lung capacity is exchanged with each breath varies by species,

0:26:08.000 --> 0:26:11.800
<v Speaker 3>and I guess probably also would vary with individual animals too,

0:26:11.880 --> 0:26:16.280
<v Speaker 3>but there are certainly species differences and there are trends

0:26:16.440 --> 0:26:20.720
<v Speaker 3>with groups of animals. According to Wartsock, the tidal volume

0:26:21.080 --> 0:26:25.119
<v Speaker 3>is a bigger percentage of the animal's total lung capacity

0:26:25.200 --> 0:26:28.280
<v Speaker 3>when you're looking at marine mammals than when you're looking

0:26:28.320 --> 0:26:34.360
<v Speaker 3>at terrestrial mammals. So you look at an average terrestrial mammal, horses, humans,

0:26:34.400 --> 0:26:38.080
<v Speaker 3>whatever tidal volume is going to be something like ten

0:26:38.160 --> 0:26:44.119
<v Speaker 3>to fifteen percent of total lung capacity. Meanwhile, for marine mammals,

0:26:44.160 --> 0:26:47.320
<v Speaker 3>and this would include not just whales, but other marine mammals,

0:26:47.359 --> 0:26:51.760
<v Speaker 3>pinnipeds and so forth, average tidal volume is much higher,

0:26:51.920 --> 0:26:55.960
<v Speaker 3>usually more than seventy five percent of total lung capacity,

0:26:56.080 --> 0:27:00.280
<v Speaker 3>so many multiples beyond the depth of gas exchange that

0:27:00.320 --> 0:27:04.000
<v Speaker 3>we accomplish when we breathe. For sea mammals like whales,

0:27:04.080 --> 0:27:07.639
<v Speaker 3>breathing in and out is just a more dramatic activity.

0:27:07.480 --> 0:27:13.240
<v Speaker 3>They're emptying and refilling to a near total extent, and

0:27:13.400 --> 0:27:17.119
<v Speaker 3>that's just for normal respiration. For what works out calls

0:27:17.400 --> 0:27:22.199
<v Speaker 3>vital capacity essentially the maximum title volume you're capable of

0:27:22.240 --> 0:27:24.679
<v Speaker 3>when you're like really breathing in and out as deeply

0:27:24.720 --> 0:27:28.639
<v Speaker 3>as you can. That rarely exceeds seventy five percent of

0:27:28.760 --> 0:27:33.040
<v Speaker 3>lung capacity in land based mammals, but marine mammals can

0:27:33.080 --> 0:27:36.639
<v Speaker 3>go higher than ninety percent. So even though again whales

0:27:36.720 --> 0:27:39.800
<v Speaker 3>might have smaller lungs relative to body size, they can

0:27:40.080 --> 0:27:44.480
<v Speaker 3>like almost totally collapse that lung to exhale and then

0:27:44.600 --> 0:27:49.119
<v Speaker 3>reinflate the lung totally, like huge exchange of gas. And

0:27:49.160 --> 0:27:52.960
<v Speaker 3>the question would be what makes that difference? Why would

0:27:53.040 --> 0:27:56.480
<v Speaker 3>marine mammals have the ability to sort of crush out

0:27:56.520 --> 0:27:58.960
<v Speaker 3>their lungs like that. Well, we can't really do the

0:27:58.960 --> 0:28:02.800
<v Speaker 3>same thing, Wortok says, quote. Marine mammal lungs contain more

0:28:02.960 --> 0:28:07.359
<v Speaker 3>elastic tissue than those of terrestrial mammals. The ribs contain

0:28:07.440 --> 0:28:10.960
<v Speaker 3>more cartilage and are thus more compliant than those of

0:28:11.040 --> 0:28:15.600
<v Speaker 3>terrestrial mammals. The lung is also more compliant. Marine mammal

0:28:15.640 --> 0:28:20.200
<v Speaker 3>lungs can collapse and reinflate repeatedly, whereas in terrestrial mammals,

0:28:20.240 --> 0:28:24.679
<v Speaker 3>lung collapse is a serious situation that requires intervention to reinflate,

0:28:25.040 --> 0:28:29.520
<v Speaker 3>although both terrestrial mammals and marine mammals inspire actively and

0:28:29.720 --> 0:28:34.919
<v Speaker 3>expire passively, so there's active working of a muscle to

0:28:34.960 --> 0:28:40.400
<v Speaker 3>breathe in and then relaxing of the muscle to breathe out. Quote.

0:28:40.440 --> 0:28:44.560
<v Speaker 3>The features noted earlier allow much greater elastic recoil of

0:28:44.640 --> 0:28:48.240
<v Speaker 3>the lungs chest, cavity, and diaphragm, and thus a greater

0:28:48.400 --> 0:28:52.320
<v Speaker 3>tidal volume in proportion to total lung capacity. So he's

0:28:52.360 --> 0:28:54.959
<v Speaker 3>almost painting a picture of whale lungs as this kind

0:28:55.000 --> 0:28:59.720
<v Speaker 3>of I don't know, like super elastica balloon or is

0:28:59.720 --> 0:29:02.280
<v Speaker 3>something that just kind of like springs back and forth.

0:29:02.880 --> 0:29:07.280
<v Speaker 3>And I know this isn't biologically accurate, but to my mind,

0:29:07.680 --> 0:29:10.520
<v Speaker 3>I was thinking about with this like, you know, naturally

0:29:10.560 --> 0:29:13.360
<v Speaker 3>collapsing lung that's just part of the breathing process. It's

0:29:13.360 --> 0:29:15.800
<v Speaker 3>almost in my brain like a whoope cushion being sat

0:29:15.880 --> 0:29:17.520
<v Speaker 3>on every time the whale breathes out.

0:29:18.000 --> 0:29:21.440
<v Speaker 2>Yeah, I mean all of this. I think it brings

0:29:21.520 --> 0:29:24.120
<v Speaker 2>up something that is at once obvious about the whale

0:29:24.680 --> 0:29:29.280
<v Speaker 2>and also you know, a lot more sublime in many

0:29:29.280 --> 0:29:31.920
<v Speaker 2>ways as well. And that is of course that when

0:29:31.920 --> 0:29:35.320
<v Speaker 2>you look back at what whales may have looked like,

0:29:35.520 --> 0:29:37.360
<v Speaker 2>what their bodies may have been like when they were

0:29:37.720 --> 0:29:41.280
<v Speaker 2>land based organisms or their ancestors were, and you look

0:29:41.320 --> 0:29:43.720
<v Speaker 2>at their forms now, it's like they have changed so much,

0:29:44.000 --> 0:29:46.680
<v Speaker 2>they have evolved so much to become these masters of

0:29:46.720 --> 0:29:50.960
<v Speaker 2>the ocean, and there are all these various features like

0:29:51.000 --> 0:29:55.040
<v Speaker 2>this where it's just it's just absolutely alarming when you

0:29:55.040 --> 0:29:58.600
<v Speaker 2>look closer, even though I mean very obviously this is

0:29:58.600 --> 0:30:00.280
<v Speaker 2>the nature of the whale when you just look at

0:30:00.280 --> 0:30:02.240
<v Speaker 2>even just a basic sketch of their anatomy.

0:30:02.640 --> 0:30:06.760
<v Speaker 3>Yes, absolutely, I mean this once eons ago quadrupedal mammal

0:30:06.880 --> 0:30:10.920
<v Speaker 3>that lived an ever increasing amount of its life in

0:30:11.000 --> 0:30:14.600
<v Speaker 3>the water and eventually became a fully marine organism. And

0:30:14.640 --> 0:30:17.840
<v Speaker 3>now one of its adaptations is that its lungs almost

0:30:17.880 --> 0:30:21.720
<v Speaker 3>completely collapse when it breeds out and create this forceful

0:30:22.000 --> 0:30:25.800
<v Speaker 3>burst of exhalation that is, in the end, what we

0:30:25.840 --> 0:30:28.680
<v Speaker 3>see when the whale, when the whale spouts or when

0:30:28.680 --> 0:30:32.600
<v Speaker 3>the blowhole opens, and it can be incredibly powerful when

0:30:32.680 --> 0:30:37.360
<v Speaker 3>the lung collapses. Wartsock writes, quote in gray whale calves

0:30:37.400 --> 0:30:41.560
<v Speaker 3>the duration of expiration and inhalation is closer to half

0:30:41.600 --> 0:30:44.080
<v Speaker 3>a second, but the tidal volume can be as great

0:30:44.120 --> 0:30:48.000
<v Speaker 3>as sixty two leaders, and the maximum flow rate is

0:30:48.040 --> 0:30:51.480
<v Speaker 3>as great as two hundred and two leaders per second.

0:30:52.040 --> 0:30:55.200
<v Speaker 3>Gas flows through the external nares at speeds of forty

0:30:55.240 --> 0:30:59.720
<v Speaker 3>four meters per second during inspiration and two hundred meters

0:30:59.760 --> 0:31:04.960
<v Speaker 3>percent second during expiration, and that also he emphasizes how

0:31:05.040 --> 0:31:08.680
<v Speaker 3>efficient the breathing process is, saying that, like the breathing

0:31:08.800 --> 0:31:12.440
<v Speaker 3>out usually begins before the whale actually even breaks the

0:31:12.480 --> 0:31:15.520
<v Speaker 3>surface of the water, so it's like they're coming up

0:31:15.600 --> 0:31:19.760
<v Speaker 3>to break the surface, and then before they reach the surface,

0:31:19.840 --> 0:31:22.560
<v Speaker 3>the exhale starts, so it blasts, and then that might

0:31:22.640 --> 0:31:25.360
<v Speaker 3>create some of the water you actually see. Another part

0:31:25.400 --> 0:31:27.680
<v Speaker 3>of what appears to be water coming out of the

0:31:27.680 --> 0:31:30.600
<v Speaker 3>blowhole is the condensing of the of the vapor from

0:31:30.640 --> 0:31:33.240
<v Speaker 3>the lungs. But then it's over the surface for just

0:31:33.280 --> 0:31:35.400
<v Speaker 3>a little bit of time. It uses that time while

0:31:35.400 --> 0:31:38.120
<v Speaker 3>it's out to breathe in suddenly and then it goes

0:31:38.160 --> 0:31:38.720
<v Speaker 3>back under.

0:31:39.240 --> 0:31:43.360
<v Speaker 2>Yeah. In my experiences out there with the gray whales too,

0:31:43.520 --> 0:31:48.040
<v Speaker 2>the Yeah, it's depending on when they're releasing their exhalation.

0:31:48.960 --> 0:31:52.720
<v Speaker 2>If they're releasing it when the blowhole is above or

0:31:52.720 --> 0:31:55.920
<v Speaker 2>mostly above the surface of the water. That creates one

0:31:56.040 --> 0:31:59.440
<v Speaker 2>type of spout. But if they release it underneath the

0:31:59.480 --> 0:32:02.400
<v Speaker 2>water by even say, you know, a few inches or more,

0:32:03.080 --> 0:32:05.440
<v Speaker 2>you're going to have even more water coming up. It's

0:32:05.440 --> 0:32:08.320
<v Speaker 2>going to be even more of a of what feels

0:32:08.360 --> 0:32:11.080
<v Speaker 2>like a fountain to the face or to the side

0:32:11.080 --> 0:32:11.480
<v Speaker 2>of the boat.

0:32:20.720 --> 0:32:22.840
<v Speaker 3>Now, one last thing I wanted to mention about why

0:32:22.880 --> 0:32:26.440
<v Speaker 3>whales can stay under so long. Actually first came across

0:32:26.480 --> 0:32:30.080
<v Speaker 3>this and just an interesting informational video by a marine

0:32:30.120 --> 0:32:33.560
<v Speaker 3>ecologist at the University of New South Wales named Professor

0:32:33.720 --> 0:32:37.400
<v Speaker 3>Tracy Rogers, and this was pointing out, in addition to

0:32:37.400 --> 0:32:41.280
<v Speaker 3>stuff about the lungs, the capacity of cetaceans to just

0:32:41.400 --> 0:32:44.880
<v Speaker 3>store more oxygen in their body tissues. So beyond what

0:32:45.560 --> 0:32:49.120
<v Speaker 3>gas the lungs are capable of holding the storage of

0:32:49.200 --> 0:32:52.640
<v Speaker 3>oxygen in the hemoglobin and red blood cells. You know,

0:32:52.920 --> 0:32:56.800
<v Speaker 3>both humans and whales marine mammals. In terrestrial mammals store

0:32:56.880 --> 0:33:01.560
<v Speaker 3>oxygen in the hemoglobin, but whales have much more hemoglobin

0:33:01.640 --> 0:33:04.760
<v Speaker 3>in their blood, which is one reason that their blood

0:33:04.880 --> 0:33:08.880
<v Speaker 3>might appear darker red than the blood of terrestrial mammals.

0:33:08.880 --> 0:33:10.600
<v Speaker 3>I don't know if you've ever seen whale blood, but

0:33:11.120 --> 0:33:13.719
<v Speaker 3>I feel like I have noticed this before that it

0:33:13.800 --> 0:33:16.640
<v Speaker 3>comes out so dark red it almost looks kind of

0:33:16.680 --> 0:33:18.000
<v Speaker 3>like black or purple.

0:33:18.680 --> 0:33:20.360
<v Speaker 2>I suppose I've seen it in documentaries.

0:33:20.440 --> 0:33:24.760
<v Speaker 3>Yes, yeah, But also whales simply have more blood relative

0:33:24.800 --> 0:33:28.560
<v Speaker 3>to their body size than terrestrial mammals generally do, and

0:33:28.760 --> 0:33:34.080
<v Speaker 3>they have more myoglobin in their muscles to store oxygen,

0:33:34.400 --> 0:33:36.480
<v Speaker 3>as well as other adaptations that just have to do

0:33:36.560 --> 0:33:40.480
<v Speaker 3>with how the body of the whale uses oxygen once

0:33:40.520 --> 0:33:43.520
<v Speaker 3>it is submerged, So it has adaptations that can, say,

0:33:44.520 --> 0:33:48.280
<v Speaker 3>turn off delivery of oxygen to certain body systems that

0:33:48.320 --> 0:33:50.840
<v Speaker 3>are not necessarily being used at the moment while the

0:33:50.880 --> 0:33:54.520
<v Speaker 3>whale is deeply submerged. So if it's a deep underwater

0:33:54.600 --> 0:33:56.480
<v Speaker 3>hunting and it's not going to come up for a while,

0:33:56.600 --> 0:34:00.640
<v Speaker 3>it might sort of reduce oxygen usage of its digestive

0:34:00.640 --> 0:34:01.960
<v Speaker 3>system or something like that.

0:34:02.320 --> 0:34:06.120
<v Speaker 2>Now we've discussed how the ancestors of whales had frontal

0:34:06.160 --> 0:34:08.640
<v Speaker 2>nostrils at the ends of their snouts before on the show,

0:34:08.680 --> 0:34:14.239
<v Speaker 2>and how the nostrils travel up to the top of

0:34:14.280 --> 0:34:18.440
<v Speaker 2>the head over the course of their evolution, becoming the blowhole.

0:34:19.280 --> 0:34:21.920
<v Speaker 2>We can see evidence of this journey in fossil remains,

0:34:21.960 --> 0:34:25.239
<v Speaker 2>and we can also see this movement in their fetal development.

0:34:25.280 --> 0:34:30.120
<v Speaker 2>We can watch the blowhole move up the face and head,

0:34:30.680 --> 0:34:34.160
<v Speaker 2>and I believe we mostly discuss the energy efficiency of

0:34:34.200 --> 0:34:36.880
<v Speaker 2>a snout breather having to bring the whole head up

0:34:36.920 --> 0:34:39.120
<v Speaker 2>as opposed to the top of the head, and Hammond

0:34:39.160 --> 0:34:42.760
<v Speaker 2>at All also point out that this positioning definitely shades

0:34:42.800 --> 0:34:46.040
<v Speaker 2>down the breathing time over the course of evolution. So

0:34:46.400 --> 0:34:47.960
<v Speaker 2>all they have to do, they don't have to bring

0:34:48.000 --> 0:34:50.440
<v Speaker 2>the snout up to breathe. All they have to do

0:34:50.600 --> 0:34:53.719
<v Speaker 2>is just get the blowhole itself above the surface of

0:34:53.760 --> 0:34:57.120
<v Speaker 2>the water. And like we've been saying in so many changes,

0:34:57.239 --> 0:35:00.400
<v Speaker 2>I mean, the whale is a creature that has just

0:35:00.440 --> 0:35:05.320
<v Speaker 2>been completely transformed by its journey into and its mastery

0:35:05.520 --> 0:35:08.600
<v Speaker 2>of the ocean over the course of its evolution. And

0:35:08.680 --> 0:35:11.160
<v Speaker 2>you can there's so many examples of this, but one

0:35:11.160 --> 0:35:14.480
<v Speaker 2>that came up is this that they have no facial sinuses,

0:35:14.920 --> 0:35:19.400
<v Speaker 2>presumably to avoid complications with diving. Anyone out there if

0:35:19.440 --> 0:35:22.440
<v Speaker 2>you're a diver, and you may know that some of

0:35:22.480 --> 0:35:25.040
<v Speaker 2>the complications that can occur if you're say clogged your

0:35:25.040 --> 0:35:27.880
<v Speaker 2>sinuses are clogged up or something like that. Even if

0:35:27.880 --> 0:35:31.799
<v Speaker 2>you're flying, you can sometimes encounter problems with this, and

0:35:31.880 --> 0:35:34.160
<v Speaker 2>so this is this is just one problem that the

0:35:34.440 --> 0:35:38.759
<v Speaker 2>whale has eliminated through its evolution. Now, coming back to

0:35:38.920 --> 0:35:42.520
<v Speaker 2>the visible spout of the whale, the blow of the whale,

0:35:42.800 --> 0:35:45.000
<v Speaker 2>as one would see from a distance that archually blows.

0:35:46.000 --> 0:35:48.640
<v Speaker 2>It's it's worth noting that it's this is something that

0:35:48.680 --> 0:35:52.040
<v Speaker 2>Mark Carbadine discusses in Hambook of Whales, Dolphins and Porpoises.

0:35:53.360 --> 0:35:55.799
<v Speaker 2>The blow or the spout of a whale is very

0:35:55.840 --> 0:36:00.200
<v Speaker 2>distinctive with larger whales, and it can be categorized by height, shape,

0:36:00.239 --> 0:36:03.839
<v Speaker 2>and visibility. And that's not to say it's easy to do.

0:36:03.960 --> 0:36:06.799
<v Speaker 2>There's an art to it. An experienced whale watcher has

0:36:06.840 --> 0:36:10.800
<v Speaker 2>to take into account various factors such as wind, rain,

0:36:11.400 --> 0:36:15.160
<v Speaker 2>air temperature, light quality, which can all of these can

0:36:15.200 --> 0:36:17.560
<v Speaker 2>you distort the shape of the spout or the degree

0:36:17.600 --> 0:36:21.440
<v Speaker 2>to which the spout is visible. And also we have

0:36:21.520 --> 0:36:24.279
<v Speaker 2>to take into account that the first spout after a

0:36:24.320 --> 0:36:27.359
<v Speaker 2>long dive tends to be far stronger, which I think

0:36:27.400 --> 0:36:29.799
<v Speaker 2>we can sort of relate to that. I mean, that's

0:36:29.920 --> 0:36:33.280
<v Speaker 2>kind of our experience of breathing after holding one's breath

0:36:33.280 --> 0:36:36.320
<v Speaker 2>for a period of time. Also, individual whale size is

0:36:36.360 --> 0:36:38.400
<v Speaker 2>going to play a role in all this, and also

0:36:38.480 --> 0:36:42.840
<v Speaker 2>behavior of an individual whale will also be a factor. Still,

0:36:42.840 --> 0:36:45.160
<v Speaker 2>if you know what you're doing, you can make out

0:36:45.280 --> 0:36:48.920
<v Speaker 2>the species of a great whale, especially at a distance.

0:36:49.360 --> 0:36:52.839
<v Speaker 2>To give a few basic examples of note, here and Joe,

0:36:52.840 --> 0:36:56.560
<v Speaker 2>I sent you some snapshot of some of the illustrations

0:36:56.560 --> 0:36:59.439
<v Speaker 2>from Carlodine's book to look at in your email. There.

0:36:59.480 --> 0:37:02.760
<v Speaker 2>But the gray whale, which we discussed in previous episodes

0:37:03.280 --> 0:37:06.720
<v Speaker 2>is known for its heart shaped plume up to five meters.

0:37:07.280 --> 0:37:10.320
<v Speaker 2>The sperm whale is also known for its spout. It

0:37:10.360 --> 0:37:13.799
<v Speaker 2>has a single blowhole spout off to the side up

0:37:13.800 --> 0:37:17.040
<v Speaker 2>to six meters. The blue whale spout is a single

0:37:17.160 --> 0:37:20.799
<v Speaker 2>vertical plume of up to twelve meters. Then the North

0:37:20.840 --> 0:37:23.759
<v Speaker 2>Atlantic right whale is interesting. Like other right whales, it

0:37:23.800 --> 0:37:26.880
<v Speaker 2>has two spouts, one off to either side up to

0:37:26.920 --> 0:37:30.719
<v Speaker 2>seven meters. And then with the orca, which of course

0:37:30.719 --> 0:37:33.520
<v Speaker 2>we discussed at length in our gray whale series, up

0:37:33.520 --> 0:37:37.719
<v Speaker 2>to five meters, bushy at the top and projected slightly forward.

0:37:38.160 --> 0:37:40.640
<v Speaker 3>Yeah, these illustrations are lovely and they do almost kind

0:37:40.640 --> 0:37:43.680
<v Speaker 3>of look like a silhouettes of different tree species that

0:37:43.800 --> 0:37:46.200
<v Speaker 3>you would identify like that, you know, oh, that's the

0:37:46.239 --> 0:37:48.359
<v Speaker 3>maple and that's the spruce right right.

0:37:48.400 --> 0:37:51.719
<v Speaker 2>So any book you have, particular and in particular the

0:37:51.760 --> 0:37:55.160
<v Speaker 2>Handbook of Whales, Dolphins and Porposes, Yeah, it has pages

0:37:55.520 --> 0:37:57.399
<v Speaker 2>of these where you can compare them. But then also

0:37:57.880 --> 0:38:02.480
<v Speaker 2>each species profiled in the book, they have this image

0:38:02.480 --> 0:38:05.200
<v Speaker 2>of what it's spout would basically look like. Again, you'd

0:38:05.200 --> 0:38:07.160
<v Speaker 2>have to take into account some of these factors though.

0:38:07.640 --> 0:38:09.080
<v Speaker 2>All right, Well, on that note, we're going to go

0:38:09.120 --> 0:38:12.040
<v Speaker 2>ahead and close out this episode, but we'll be back

0:38:12.080 --> 0:38:14.240
<v Speaker 2>for a part two on all of this. I believe

0:38:14.239 --> 0:38:17.680
<v Speaker 2>this will be a two parter, so come back on Thursday.

0:38:17.719 --> 0:38:21.560
<v Speaker 2>We have more to discuss more on this whole idea

0:38:21.840 --> 0:38:26.280
<v Speaker 2>that the Herman Melville's talking about, that a whale spout

0:38:26.400 --> 0:38:30.040
<v Speaker 2>is going to burn your skin off, poison you, and

0:38:30.080 --> 0:38:35.120
<v Speaker 2>blind you. We'll see what some contemporary critics we're saying

0:38:35.120 --> 0:38:37.200
<v Speaker 2>about all of that, and we'll get into some other

0:38:37.280 --> 0:38:40.839
<v Speaker 2>areas surrounding whale spout. In the meantime, if you would

0:38:40.840 --> 0:38:42.600
<v Speaker 2>like to check out other episodes of stuff to blow

0:38:42.600 --> 0:38:46.279
<v Speaker 2>your mind, including checking out that multi part series we

0:38:46.320 --> 0:38:51.040
<v Speaker 2>did on the Gray Whale and it's travels its relationship

0:38:51.080 --> 0:38:54.080
<v Speaker 2>with the Orcas. You can find that in the Stuff

0:38:54.120 --> 0:38:56.560
<v Speaker 2>to Blow Your Mind podcast. Feed core episodes on Tuesdays

0:38:56.600 --> 0:38:58.759
<v Speaker 2>and Thursdays. On Mondays we do a listener mail, on

0:38:58.760 --> 0:39:01.319
<v Speaker 2>Wednesdays we do a short form artifact or monster fact,

0:39:01.640 --> 0:39:04.040
<v Speaker 2>and on Fridays we set aside most serious concerns to

0:39:04.120 --> 0:39:06.360
<v Speaker 2>just talk about a weird film on Weird House Cinema.

0:39:06.520 --> 0:39:09.960
<v Speaker 3>Huge thanks to our audio producer JJ Posway. If you

0:39:09.960 --> 0:39:12.200
<v Speaker 3>would like to get in touch with us with feedback

0:39:12.239 --> 0:39:14.640
<v Speaker 3>on this episode or any other, to suggest a topic

0:39:14.640 --> 0:39:17.040
<v Speaker 3>for the future, or just to say hello, you can

0:39:17.120 --> 0:39:20.000
<v Speaker 3>email us at contact at stuff to Blow your Mind

0:39:20.200 --> 0:39:28.200
<v Speaker 3>dot com.

0:39:28.280 --> 0:39:31.200
<v Speaker 1>Stuff to Blow Your Mind is production of iHeartRadio. For

0:39:31.280 --> 0:39:34.080
<v Speaker 1>more podcasts from my Heart Radio, visit the iHeartRadio app,

0:39:34.239 --> 0:39:51.000
<v Speaker 1>Apple Podcasts, or wherever you listen to your favorite shows.