WEBVTT - Surfing Neanderthals 

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<v Speaker 1>Welcome Stuff to Blow Your Mind, a production of I

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<v Speaker 1>Heart Radios How Stuff Works. Hey, you welcome to Stuff

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<v Speaker 1>to Blow your Mind. My name is Robert Lamb and

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<v Speaker 1>I'm Joe McCormick. And before we turn the mics on,

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<v Speaker 1>or actually after we turned the mics on, but before

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<v Speaker 1>we officially started the episode, we were just talking about,

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<v Speaker 1>is there a better eighties action movie than Point Break? Um?

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<v Speaker 1>I mean, arguably there there are some definitely some action

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<v Speaker 1>pictures that I love more than Point Break. But Point

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<v Speaker 1>Break has a purity to it, you know, this like this, this,

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<v Speaker 1>this the weird nobility of this band of nomadic surfers

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<v Speaker 1>who are also bank robbers. And uh. And then the

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<v Speaker 1>man who is pursuing them, a man who must become

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<v Speaker 1>a surfer in order to catch surfers. Because isn't that

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<v Speaker 1>it meant the old saying in order to catch a surfer,

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<v Speaker 1>you must become a surfer. Uh, something like that. Patrick

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<v Speaker 1>Swayzy is the key to the movie. Oh and hey,

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<v Speaker 1>by the way, if you're out there some kind of

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<v Speaker 1>pedants saying wait a minute, Point Break didn't come out

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<v Speaker 1>in the nineteen eighties. How are you saying it's the

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<v Speaker 1>best eighties action movie. As we all know, Cinna in

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<v Speaker 1>the cinema world the nineteen eighties lasted until nine. Okay, yeah,

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<v Speaker 1>I think that's a solid argument. But yeah, this was

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<v Speaker 1>This was some some really great sways in this film,

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<v Speaker 1>Like sways. He just has such such a unique charisma

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<v Speaker 1>that he's it's it's like with with the Roadhouse. You know,

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<v Speaker 1>he's he's able to be just so serious in this

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<v Speaker 1>role and it's you're you're laughing because it is ridiculous,

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<v Speaker 1>but at the same time you're totally buying into this presentation.

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<v Speaker 1>He's giving you absolutely the deep seriousness in the delivery

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<v Speaker 1>of the lines like pain don't hurt, the fact that

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<v Speaker 1>he is is trying to commit to this character who's

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<v Speaker 1>like a philosopher bouncer in Roadhouse. Yeah, in Roadhouse, but now,

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<v Speaker 1>I mean, essentially, I think he's playing the same character

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<v Speaker 1>in Point Break, and that in Roadhouse he's a pill

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<v Speaker 1>asper bouncer. In Point Break, he's the same character. He's

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<v Speaker 1>now become a philosopher surfer slash bank robber. Yeah, and

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<v Speaker 1>and he's he's tremendous. He just like he eats that

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<v Speaker 1>they've seen he's in Point point Break is a great

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<v Speaker 1>example of one of these eighties again, but it was

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<v Speaker 1>the eighties. Eighties action movies that is so silly in

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<v Speaker 1>a way that like, there are still action movies that

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<v Speaker 1>have a great spirit of silliness that aren't like these unpleasant,

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<v Speaker 1>self serious action movies. Uh. You know. A good example

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<v Speaker 1>is like the later movies in the Fast and the

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<v Speaker 1>Furious franchise, which can be a lot of fun, but

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<v Speaker 1>they are they're in on the joke, like the rock

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<v Speaker 1>is winking at the camera. It's you know, it's played

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<v Speaker 1>explicitly for a kind of like wet laughter that like

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<v Speaker 1>cars can fly and all this, but that's not what's

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<v Speaker 1>going on in Point Break, Point Break, and and some

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<v Speaker 1>of the movies like it are just as silly as

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<v Speaker 1>the later Fast and the Furious movies, but they're not

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<v Speaker 1>they're not winking at you. They're not in on the joke. Instead,

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<v Speaker 1>they've got Patrick Swayzy who stay in himself. Real seriously,

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<v Speaker 1>I wonder if part of that is that a film

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<v Speaker 1>like Point Break like building on the in a sense,

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<v Speaker 1>even though it's an eighties and so technically nineties film,

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<v Speaker 1>it's building on like the grittier uh, like a film

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<v Speaker 1>heritage of the nineteen seventies that preceded it, and where

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<v Speaker 1>whereas nineties films are are proceeding from the eighties films,

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<v Speaker 1>uh and so forth to where there's just like the

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<v Speaker 1>initial groundwork underneath something like The Fast and the Furious.

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<v Speaker 1>It's just that much sillier and that that and just

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<v Speaker 1>further removed from like nineteen seventies cinema. Wait a minute,

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<v Speaker 1>why are we talking about Point Break? Oh? Yeah, we're

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<v Speaker 1>talking about it because this episode is about surfing the indertals.

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<v Speaker 1>I mean, it's also not about surfing neandertals, but it

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<v Speaker 1>is about neandertals. It's about surfer's ear and uh, surfing

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<v Speaker 1>the Andertal's the working title of Point Break that was

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<v Speaker 1>on the script. It it's exactly where my mind went

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<v Speaker 1>when I first read a very recent scientific paper the

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<v Speaker 1>came out about the under tolls and surfers here. But

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<v Speaker 1>but before we get into all that um and we

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<v Speaker 1>may come back two point break. As we proceed again,

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<v Speaker 1>I want to be clear that this episode is not

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<v Speaker 1>really about surfing. It doesn't have that much to do

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<v Speaker 1>with surfing, But I do want to point out the

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<v Speaker 1>ancient origins of this aquatic practice we call surfing. What

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<v Speaker 1>surfing wasn't invented in the nineteen sixties, No, no, no,

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<v Speaker 1>And I was looking at a couple of sources on this,

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<v Speaker 1>but but one of the better ones that came across

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<v Speaker 1>um was a book by Ben R. Finny and James D.

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<v Speaker 1>Houston called Surfing A History of the Ancient Hawaiian Sport.

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<v Speaker 1>And uh, it's pretty insightful. They point out that that

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<v Speaker 1>all you need really to surf is a surfer and

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<v Speaker 1>a board and of course waves um or something standing

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<v Speaker 1>in for a board, such as a canoe, or even

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<v Speaker 1>the surfer's own body. I mean, you can body surf.

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<v Speaker 1>What you don't need a surfballfall, you don't need a

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<v Speaker 1>surf suit. Well, as we'll discuss, it can be very helpful,

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<v Speaker 1>especially in the colder waters. Uh. You know, it's just

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<v Speaker 1>it's ultimately and I don't know, have you ever surfed, Joe,

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<v Speaker 1>Have you ever? No, I've I mean very limited water experience.

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<v Speaker 1>I've done like knee boarding, and that's I know that's

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<v Speaker 1>not surfing. I'd say that's the closest to that. But

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<v Speaker 1>you've you've gotten up on your knees on a surfboard, well,

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<v Speaker 1>not on a surfboard on a knee board. I don't

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<v Speaker 1>know how different they are. I've gotten up on my

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<v Speaker 1>knees on a floating thing that was being towed behind

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<v Speaker 1>a boat. Okay, well a little. It's not close, but

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<v Speaker 1>but it's it's enough. We can we can build from here.

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<v Speaker 1>So I am not a surfer, but I on a

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<v Speaker 1>trip to who I, um, you know, like like twenty

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<v Speaker 1>years ago or something. Um, I was encouraged by a

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<v Speaker 1>friend to go out and try it. This friend had

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<v Speaker 1>surfed before. This is very helpful I find if you

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<v Speaker 1>were going to try to surf, uh, certainly go someone

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<v Speaker 1>who has at least done it once before, but proverably

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<v Speaker 1>somebody who who is more skilled than that. But there

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<v Speaker 1>is this kind of magical moment where you're you're pushing

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<v Speaker 1>the board, You're you're paddling and kicking, you're just going

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<v Speaker 1>as hard and as fast as you can. Uh, and

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<v Speaker 1>then it comes this this almost magical moment where the

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<v Speaker 1>wave catches the board and suddenly the waves propelling the board.

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<v Speaker 1>And this is the point where then you can climb

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<v Speaker 1>up on onto your knees on the board. And then

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<v Speaker 1>then once you you know, have your figure out what

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<v Speaker 1>you're doing. This is where you can rise up on

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<v Speaker 1>both of your feet on the board and you can

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<v Speaker 1>ride the surfboard like a surfer rides a surfboard. And

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<v Speaker 1>it sounds hard. I mean, it's it's it's one of

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<v Speaker 1>those things where I definitely would have given up had

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<v Speaker 1>I not been encouraged to keep doing it, you know,

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<v Speaker 1>to just keep do it again once more. Let's let's

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<v Speaker 1>paddle back and then paddle as hard and fast as

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<v Speaker 1>you can to try and catch this magical moment when

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<v Speaker 1>the when the board catches you. Um yeah, and so

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<v Speaker 1>like once so, all you need is a board, the waves, yourself,

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<v Speaker 1>and then like the patience and or courage to to

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<v Speaker 1>reach that point where you can rise up on the

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<v Speaker 1>board and become comfortable enough doing so that you can

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<v Speaker 1>manipulate the bird board further. Okay, so of surfing was

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<v Speaker 1>not invented by the beach boys in the mid twentieth century,

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<v Speaker 1>Where does surfing actually come from? Well, as the authors

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<v Speaker 1>at this point out how Hawaii is of course strongly

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<v Speaker 1>associated with surfing, and humans seem to have first arrived

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<v Speaker 1>at these far flung Polynesian islands by between three hundred

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<v Speaker 1>and four hundred ce. Now, longboards would have developed over time,

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<v Speaker 1>and the author's guess that Hawaiian surfing is ultimately perhaps

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<v Speaker 1>a thousand years old. Yet the principles involved would have

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<v Speaker 1>been known to Pacific islanders and the first pioneers to

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<v Speaker 1>enter the Pacific as far back as two thousand b C. So, um,

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<v Speaker 1>you know, it's one of those again, it's one of

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<v Speaker 1>those things where the necessary technology, uh, and and and

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<v Speaker 1>ability you know, is not something that were It did

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<v Speaker 1>not exist before thousand years ago, you know, conceivably uh,

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<v Speaker 1>you know, these more ancient cultures knew of the properties involved.

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<v Speaker 1>So we don't know for sure how far back it could, right,

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<v Speaker 1>And there's also some debate whether a form of stand

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<v Speaker 1>up paddle boarding practiced by the pre Incan civilization in

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<v Speaker 1>Peru would have constituted surfing some two thousand years ago.

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<v Speaker 1>Of course, that's another thing you get into, you know,

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<v Speaker 1>discussions of the terminology. Is it truly surfing, is it's

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<v Speaker 1>something else? Are are the people on these paddle boards

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<v Speaker 1>ever reaching that point where the you know, the magic

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<v Speaker 1>of the wave takes over and propels them. But anyway,

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<v Speaker 1>I just I found it. It'll be useful I think

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<v Speaker 1>to just think of that as we proceed, uh, in

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<v Speaker 1>order to also keep it connected to surfing in some way.

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<v Speaker 1>To think of of surfing as this thing that is

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<v Speaker 1>at least a thousand years old, maybe older, and uh

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<v Speaker 1>and ultimately, just based on the technology involved, is not

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<v Speaker 1>all that uh, you know, constrained to a particular portion

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<v Speaker 1>of human time. For all we know dinosaurs for surfing.

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<v Speaker 1>Definitely dinosaurs. Well, no, the dinosaurs were not surfing. But

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<v Speaker 1>I mean, ultimately, to come back to the title of

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<v Speaker 1>the episode, when you start wondering if Neanderthals surfed, there's

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<v Speaker 1>that really no evidence that they did. But when you

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<v Speaker 1>start considering the technology involved, yes, somebody could make a

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<v Speaker 1>case for it, and it would be you know, you

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<v Speaker 1>wouldn't have be able to prove it necessary that we

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<v Speaker 1>wouldn't be able to disprove it. So what we're gonna

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<v Speaker 1>be talking about though in this episode is more a

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<v Speaker 1>matter of what is known as surfers ear. Okay, Now,

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<v Speaker 1>I remember from when I was a kid, people I

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<v Speaker 1>knew getting swimmers ear. But that was just like ear infections,

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<v Speaker 1>right right, Swimmers ear is is a different thing. Is

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<v Speaker 1>bacterial infection of the outer ear, often caused by trapped water,

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<v Speaker 1>so water or debris, it gets trapped in the ear

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<v Speaker 1>and it can cause an infection. And uh and depending

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<v Speaker 1>on like the state and condition of your your ear canals. Uh,

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<v Speaker 1>some people are more uh you know, have more tendants,

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<v Speaker 1>more a greater tendency to uh to get swimmers eer

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<v Speaker 1>than other people. I remember people with swimmers ear being

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<v Speaker 1>treated by just getting like ethyl alcohol pulled in there

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<v Speaker 1>or maybe I don't know what kind of some kind

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<v Speaker 1>of alcohol alcohol uh poured in their ear. Yeah, there's

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<v Speaker 1>just a stest standard swimmer's ear um droplets you can get.

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<v Speaker 1>I use some, like just the other day because I

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<v Speaker 1>swim fairly regularly. But uh. But but then also not

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<v Speaker 1>to be confused with the drops you would get for

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<v Speaker 1>a full blown ear infection. Like this is where yeah,

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<v Speaker 1>everything is actually getting like more and more painful in

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<v Speaker 1>your ear, and that may require uh, some more advanced drops.

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<v Speaker 1>But that's not really what we're talking about here. What

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<v Speaker 1>we're talking about here is exostosis of the external auditory

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<v Speaker 1>canal or external auditory exostosis or e a E, also

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<v Speaker 1>known as surfer's ear. And then the game, Yeah, and

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<v Speaker 1>it's it's a condition. It's a condition that affects both

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<v Speaker 1>modern humans and our our prehistoric ancestors. So what is

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<v Speaker 1>E A E? Well, these are dense bony growths that

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<v Speaker 1>that that grow that slowly extend into the auditory ear canal.

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<v Speaker 1>Whoa bony growths in the ear canal? Now please read

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<v Speaker 1>sure me Robert that these growths are not like spiny

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<v Speaker 1>you know, no, No, these are rounded growths um that

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<v Speaker 1>you know. Basically if you look at it, if you

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<v Speaker 1>look at an image of this, it looks like they're

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<v Speaker 1>bony growths on you know, underneath the skin on either

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<v Speaker 1>side that are like that are that are pushing in,

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<v Speaker 1>causing kind of a cave in, gradual cave in of

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<v Speaker 1>the auditory canal. That still doesn't sound good. So the

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<v Speaker 1>question is what causes them? Well, this is where it

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<v Speaker 1>gets weird. It is uh, we basically still have a

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<v Speaker 1>lot of questions about surfers here. But the widely accepted

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<v Speaker 1>hypothesis is the is the aquatic hypothesis, and that is

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<v Speaker 1>that it is caused by repeated exposure to cold water

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<v Speaker 1>or or in some cases cold wind, but especially cold water,

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<v Speaker 1>and it's typically encountered in cold watered in cold water foraging.

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<v Speaker 1>Among traditional and ancient peoples as well as among cold

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<v Speaker 1>water sports practice today, such as surfing. Coming back to

0:12:00.000 --> 0:12:01.839
<v Speaker 1>a question of what is required for surfing, and you

0:12:01.920 --> 0:12:05.600
<v Speaker 1>asked about body suits and wet suits or dry suits,

0:12:05.679 --> 0:12:07.480
<v Speaker 1>and uh, you know, and and a part of this

0:12:07.559 --> 0:12:09.600
<v Speaker 1>is has to do with the fact that, in addition

0:12:09.640 --> 0:12:11.680
<v Speaker 1>to having to deal with, you know, potentially being scraped

0:12:11.760 --> 0:12:15.040
<v Speaker 1>up against things you don't want your body scraped against,

0:12:15.200 --> 0:12:19.560
<v Speaker 1>you're often also surfing in colder environments and uh, and

0:12:19.640 --> 0:12:22.440
<v Speaker 1>you want to protect your body from the cold. But

0:12:22.960 --> 0:12:26.559
<v Speaker 1>cold water is is also an irritant to the inner

0:12:26.600 --> 0:12:29.520
<v Speaker 1>ear and uh, and it is the most commonly observed

0:12:29.600 --> 0:12:33.720
<v Speaker 1>irritant that leads to surfer's ear and repeated irritation leads

0:12:33.760 --> 0:12:35.960
<v Speaker 1>to this growth. Now, wait a minute, it sounded like

0:12:36.040 --> 0:12:41.240
<v Speaker 1>you were alluding to their being potential multiple potential explanations, right, Well,

0:12:42.400 --> 0:12:44.840
<v Speaker 1>this is I mean, well, this is the primary explanation.

0:12:45.160 --> 0:12:49.400
<v Speaker 1>Um and I did not encounter another explanation that that

0:12:49.520 --> 0:12:52.120
<v Speaker 1>was really presented. Basically, it's just there are some mysteries

0:12:52.120 --> 0:12:57.160
<v Speaker 1>remain about exactly how it occurs. Uh and uh. Anybody

0:12:57.240 --> 0:13:00.240
<v Speaker 1>that's discussing surfers here like is sticking to the equatic

0:13:00.760 --> 0:13:04.000
<v Speaker 1>hypothesis here, uh, and then certainly the evidence bears it

0:13:04.040 --> 0:13:06.600
<v Speaker 1>out that it's I mean, you look at at where

0:13:06.679 --> 0:13:09.320
<v Speaker 1>surfers here occurs, and it occurs in the ears of

0:13:09.360 --> 0:13:12.440
<v Speaker 1>individuals who are engaging in a lot of cold water activity,

0:13:12.520 --> 0:13:15.560
<v Speaker 1>be it foraging, you know, pearl diving, that sort of thing,

0:13:16.120 --> 0:13:20.200
<v Speaker 1>or surfing. But you know, other forms of irritation can

0:13:20.280 --> 0:13:23.800
<v Speaker 1>can can technically cause it, uh, because it's just gonna

0:13:23.840 --> 0:13:26.440
<v Speaker 1>result in tissue inflammation in the inner ear. Now that's

0:13:26.440 --> 0:13:28.760
<v Speaker 1>gonna happen after just like you have a couple of

0:13:28.760 --> 0:13:32.000
<v Speaker 1>bad days in cold water and you get these growths. No, no, no,

0:13:32.080 --> 0:13:35.080
<v Speaker 1>it's uh, this is something that's going to develop over

0:13:35.120 --> 0:13:38.360
<v Speaker 1>the years. So typically you see it manifest in a

0:13:38.440 --> 0:13:41.520
<v Speaker 1>person during their like their mid to late thirties or

0:13:41.559 --> 0:13:44.880
<v Speaker 1>possibly in their forties, lining up with the timeline of

0:13:44.920 --> 0:13:48.719
<v Speaker 1>their exposure to the irritation. It could potentially occur earlier though,

0:13:48.760 --> 0:13:50.800
<v Speaker 1>but like this is like when you think about like

0:13:50.880 --> 0:13:53.880
<v Speaker 1>someone's prime surfing years and at what point they've been

0:13:53.880 --> 0:13:57.280
<v Speaker 1>surfing for uh, you know, for say twenty years that

0:13:57.360 --> 0:14:00.120
<v Speaker 1>sort of thing. Uh, it's gonna line up with this,

0:14:00.440 --> 0:14:02.319
<v Speaker 1>So you're more likely to see it in people who

0:14:02.360 --> 0:14:04.440
<v Speaker 1>spend a lot of time in the water over a

0:14:04.440 --> 0:14:07.160
<v Speaker 1>long period of their lives. Right, Yeah, they're spending a

0:14:07.160 --> 0:14:09.680
<v Speaker 1>lot of time in cold water, like they're going surfing

0:14:09.760 --> 0:14:12.440
<v Speaker 1>a lot, where they're going pearl diving a lot with

0:14:12.440 --> 0:14:15.439
<v Speaker 1>with a uh, you know, a fair degree of regularity. Well,

0:14:15.480 --> 0:14:18.800
<v Speaker 1>so it would seem like having bony growths protruding into

0:14:18.840 --> 0:14:21.520
<v Speaker 1>your ear canal would not be a good thing. Right,

0:14:21.600 --> 0:14:23.920
<v Speaker 1>So for for the for the longest, it's not really

0:14:24.080 --> 0:14:27.200
<v Speaker 1>an issue, but you know, it'll reach the point where

0:14:27.440 --> 0:14:31.480
<v Speaker 1>you'll have potential complications from your Essentially you're closing ear canals.

0:14:32.000 --> 0:14:36.400
<v Speaker 1>That includes decreased hearing capability uh and increased likelihood of

0:14:36.400 --> 0:14:39.280
<v Speaker 1>blockage and infection due to trapped ear wax or debris.

0:14:39.920 --> 0:14:41.960
<v Speaker 1>And you know, you see generally you're looking at a

0:14:42.200 --> 0:14:45.440
<v Speaker 1>five to eight millimeter diameter ear canal, but this can

0:14:45.480 --> 0:14:49.920
<v Speaker 1>be narrowed to almost total blockage over time by surfers.

0:14:49.920 --> 0:14:53.520
<v Speaker 1>Ere am I imagining that there's kind of a cultural

0:14:53.640 --> 0:14:58.720
<v Speaker 1>stereotype where the you know, the the archetype, the surfer dude,

0:14:58.920 --> 0:15:02.680
<v Speaker 1>the surfer person uh is saying like, what would you

0:15:02.720 --> 0:15:05.960
<v Speaker 1>say A lot? Is that? Is that just my imagination

0:15:06.080 --> 0:15:09.040
<v Speaker 1>or does that exist as part of the stereotype. UM.

0:15:09.080 --> 0:15:11.960
<v Speaker 1>I mean, there's certain certainly a crossover between like the

0:15:11.960 --> 0:15:15.280
<v Speaker 1>surfer stereotype and sort of the the dude and sort

0:15:15.280 --> 0:15:20.120
<v Speaker 1>of hippie freewheeling stereotype. I don't know if lack of

0:15:20.160 --> 0:15:21.880
<v Speaker 1>hearing is really part of it, but it would make

0:15:21.920 --> 0:15:24.440
<v Speaker 1>sense that that it would be right because based on

0:15:24.480 --> 0:15:26.320
<v Speaker 1>what we're discussing here, I mean, this is this is

0:15:26.360 --> 0:15:29.200
<v Speaker 1>where you're going to see some potential hearing loss due

0:15:29.240 --> 0:15:32.200
<v Speaker 1>to exposure to the cold water. Now. An important thing

0:15:32.240 --> 0:15:35.240
<v Speaker 1>to stress though, is that we only discovered surfers here

0:15:35.240 --> 0:15:38.040
<v Speaker 1>in the last century or so. I believe the first

0:15:38.080 --> 0:15:42.280
<v Speaker 1>report on it was a German paper by Welker h

0:15:42.560 --> 0:15:47.200
<v Speaker 1>Uber in eighteen sixty four. And uh, and so you know,

0:15:47.240 --> 0:15:49.480
<v Speaker 1>we haven't had that long to like really study it

0:15:49.520 --> 0:15:51.760
<v Speaker 1>and figure out what's what the deal is with it,

0:15:52.280 --> 0:15:53.680
<v Speaker 1>or even to figure out how, you know, ways to

0:15:53.720 --> 0:15:56.560
<v Speaker 1>treat it or how to to prevent it. But the

0:15:56.760 --> 0:15:58.680
<v Speaker 1>most obvious ways to prevent it are, of course, to

0:15:58.760 --> 0:16:03.080
<v Speaker 1>avoid regular cold water activities, UM, which may not be

0:16:03.160 --> 0:16:07.040
<v Speaker 1>an option or or desirable for you if if you're

0:16:07.080 --> 0:16:09.040
<v Speaker 1>really into surfing or you depend on some sort of

0:16:09.080 --> 0:16:12.480
<v Speaker 1>cold water foraging. But I've read that cold water surfers

0:16:12.520 --> 0:16:16.880
<v Speaker 1>are six more likely to experience it than warm water surfers,

0:16:17.840 --> 0:16:21.600
<v Speaker 1>and sounds like a significant effect. Now, you can also

0:16:21.800 --> 0:16:25.240
<v Speaker 1>wear varying forms of ear protection that will help, ranging

0:16:25.280 --> 0:16:28.320
<v Speaker 1>from special plugs to cat special caps to go over

0:16:28.360 --> 0:16:31.520
<v Speaker 1>your head in your ear, to certain varieties of wet suits.

0:16:31.560 --> 0:16:34.720
<v Speaker 1>But if you reach the point where where the bony

0:16:34.760 --> 0:16:38.560
<v Speaker 1>protrusions have grown to the point that it's an issue,

0:16:38.840 --> 0:16:43.320
<v Speaker 1>doctors can also remove the expoptosis with a surgical drill there.

0:16:43.320 --> 0:16:46.680
<v Speaker 1>I think two different procedures, two different ways of going

0:16:46.720 --> 0:16:50.600
<v Speaker 1>in there and drilling back the bone the bony growths.

0:16:50.680 --> 0:16:52.680
<v Speaker 1>And the good news is that if if you have

0:16:52.760 --> 0:16:55.440
<v Speaker 1>this done, you'll probably you really probably only have to

0:16:55.440 --> 0:16:58.480
<v Speaker 1>do it once because generally, given the timeline of of

0:16:58.560 --> 0:17:01.520
<v Speaker 1>them growing back, they can grow act, but you probably

0:17:01.560 --> 0:17:03.600
<v Speaker 1>won't reach that second point where you'll need to have

0:17:03.680 --> 0:17:05.520
<v Speaker 1>them removed. All right, looks like we need to take

0:17:05.520 --> 0:17:07.280
<v Speaker 1>a break, But when we come back, we will ask

0:17:07.320 --> 0:17:13.280
<v Speaker 1>the question of why the these spurs and the ears?

0:17:13.320 --> 0:17:15.119
<v Speaker 1>All right, we're back. All right, So we've been talking

0:17:15.119 --> 0:17:20.440
<v Speaker 1>about surfer's ear, or the idea of external auditory exostoses

0:17:21.000 --> 0:17:23.720
<v Speaker 1>or E A E. And these are these bone like

0:17:23.880 --> 0:17:27.000
<v Speaker 1>protrusions into the ear canal that seemed to pop up

0:17:27.000 --> 0:17:29.280
<v Speaker 1>in people who spend a lot of their lives in

0:17:29.400 --> 0:17:32.399
<v Speaker 1>cold water. If you're constantly irritating the ear canal with

0:17:32.480 --> 0:17:36.080
<v Speaker 1>cold water, these things are likely to pop up. Now,

0:17:36.640 --> 0:17:41.160
<v Speaker 1>I guess we haven't addressed yet why they occur. Well,

0:17:41.480 --> 0:17:44.160
<v Speaker 1>if you'll think back to the Bible, you have Cane

0:17:44.200 --> 0:17:48.440
<v Speaker 1>and Able and uh Able you know was was really

0:17:48.480 --> 0:17:50.680
<v Speaker 1>into staying on the land. Cane was a big surfer,

0:17:51.040 --> 0:17:53.520
<v Speaker 1>So God punish it now. Um has nothing to do

0:17:53.560 --> 0:17:56.480
<v Speaker 1>with that. Now, Now this is another area where it's

0:17:56.520 --> 0:17:59.280
<v Speaker 1>there's still a lot of open questions about it now,

0:17:59.280 --> 0:18:02.199
<v Speaker 1>so some are you it's essentially like bone spurs, you know,

0:18:02.280 --> 0:18:05.520
<v Speaker 1>which these occur either due to these occur you know,

0:18:05.600 --> 0:18:09.280
<v Speaker 1>due to constant irritation or stress, generally in the feet

0:18:09.640 --> 0:18:13.080
<v Speaker 1>where you have these bony um. You know, protrusions that

0:18:13.119 --> 0:18:15.840
<v Speaker 1>are forming in the foot could be quite painful. So

0:18:15.880 --> 0:18:18.399
<v Speaker 1>one idea is that it's basically that irritation leading to

0:18:18.480 --> 0:18:22.600
<v Speaker 1>growth leading to symptoms. And there's not a lot else

0:18:22.720 --> 0:18:25.760
<v Speaker 1>beyond that in terms of why, Like what is the reason,

0:18:26.200 --> 0:18:28.520
<v Speaker 1>you know, because it's like asking what is what is

0:18:28.520 --> 0:18:31.359
<v Speaker 1>the reason for bone spurs? What is you know, what

0:18:31.440 --> 0:18:35.080
<v Speaker 1>are the reason for for various ailments that afflict us

0:18:35.160 --> 0:18:38.040
<v Speaker 1>due to the things that we insist on doing due

0:18:38.119 --> 0:18:41.760
<v Speaker 1>to our you know, our our human desire to to

0:18:41.960 --> 0:18:45.960
<v Speaker 1>ride waves or climb mountains to ridiculous heights, that sort

0:18:46.000 --> 0:18:49.400
<v Speaker 1>of thing. But there is one area where you will

0:18:49.480 --> 0:18:53.800
<v Speaker 1>see an argument for a purpose behind all that. Unfortunately,

0:18:53.840 --> 0:18:57.160
<v Speaker 1>it's in aquatic eight theory. Oh yeah, So aquatic ape

0:18:57.200 --> 0:19:00.320
<v Speaker 1>theory has come up on the show before, and I

0:19:00.320 --> 0:19:03.040
<v Speaker 1>think we've talked about how this is one of those

0:19:03.080 --> 0:19:08.280
<v Speaker 1>theories that's like that's sticky. It's sticky beyond its explanatory power.

0:19:08.840 --> 0:19:12.880
<v Speaker 1>And it's hard to know exactly why some some hypotheses

0:19:12.920 --> 0:19:15.119
<v Speaker 1>are like this, but I think it tends to be

0:19:15.160 --> 0:19:19.080
<v Speaker 1>the ones that are just the most uh, that offered

0:19:19.080 --> 0:19:23.280
<v Speaker 1>the most totalizing explanation for the most phenomena through the

0:19:23.320 --> 0:19:27.919
<v Speaker 1>most interesting image. And it does that. It but it

0:19:28.040 --> 0:19:32.159
<v Speaker 1>is also widely rejected by science. Yeah, and we can

0:19:32.200 --> 0:19:34.160
<v Speaker 1>talk about some reasons for that in a minute. Yeah,

0:19:34.400 --> 0:19:36.000
<v Speaker 1>but it does continue to come up, and you know,

0:19:36.040 --> 0:19:38.280
<v Speaker 1>in fact, it was it was recently it brought up

0:19:38.560 --> 0:19:41.639
<v Speaker 1>and by none other than Sir David Attenborough himself. No,

0:19:42.320 --> 0:19:46.240
<v Speaker 1>he apparently on a BBC four um series he talked

0:19:46.280 --> 0:19:49.040
<v Speaker 1>about it and he there's something that criticized him for,

0:19:49.480 --> 0:19:53.399
<v Speaker 1>you know, bringing up, you know, a redundant scientific theory. Well,

0:19:53.640 --> 0:19:55.560
<v Speaker 1>I'm not gonna slam. I mean, you know, we talk

0:19:55.640 --> 0:19:58.720
<v Speaker 1>about theories that are not accepted because you know, it's

0:19:58.720 --> 0:20:01.360
<v Speaker 1>okay to talk about things. I agree, Yeah, you don't

0:20:01.359 --> 0:20:03.720
<v Speaker 1>have to think something is correct to talk about it.

0:20:03.720 --> 0:20:06.879
<v Speaker 1>But it sounds like he was sort of advocating it. Well,

0:20:07.240 --> 0:20:09.800
<v Speaker 1>I mean, he has a history of being interested in it.

0:20:09.840 --> 0:20:11.800
<v Speaker 1>I read that he also organized the symposium on the

0:20:11.840 --> 0:20:15.080
<v Speaker 1>topic back in But you know, it's like you said,

0:20:15.640 --> 0:20:19.480
<v Speaker 1>we discuss theories and hypotheses on this show that that

0:20:19.560 --> 0:20:22.199
<v Speaker 1>are you know, sometimes definitely under the category of of

0:20:22.280 --> 0:20:27.760
<v Speaker 1>rejected or unprovable. Uh. And I think my my opinion

0:20:27.800 --> 0:20:30.000
<v Speaker 1>is that it is okay to discuss these It's informative

0:20:30.040 --> 0:20:33.280
<v Speaker 1>to discuss these ideas, you know, as long as you're

0:20:33.320 --> 0:20:35.880
<v Speaker 1>approaching them with the right attitude and you're not like,

0:20:36.080 --> 0:20:40.560
<v Speaker 1>you know, you're not seeking to to prove them, you know,

0:20:40.720 --> 0:20:43.199
<v Speaker 1>in in your discussion of the of of of what

0:20:43.320 --> 0:20:46.679
<v Speaker 1>is unprovable, right, You're not becoming an evangelist for something

0:20:46.680 --> 0:20:50.080
<v Speaker 1>based on bad evidence. Uh. Now, So for a brief

0:20:50.080 --> 0:20:52.879
<v Speaker 1>refresh in case you don't recall us talking about this

0:20:52.920 --> 0:20:55.400
<v Speaker 1>theory in the past, the short version is, I think

0:20:55.400 --> 0:20:58.040
<v Speaker 1>that the original idea was that in nineteen sixty a

0:20:58.119 --> 0:21:03.120
<v Speaker 1>marine biologist named Alistair already proposed this idea that we

0:21:03.280 --> 0:21:07.360
<v Speaker 1>had an aquatic primate ancestor maybe four to seven million

0:21:07.440 --> 0:21:10.720
<v Speaker 1>years ago, and he proposed this in this article a

0:21:10.720 --> 0:21:12.920
<v Speaker 1>new scientist. I think he also gave a big talk

0:21:12.920 --> 0:21:16.439
<v Speaker 1>about this. I think the idea is that us having

0:21:16.640 --> 0:21:20.720
<v Speaker 1>a an aquatic or semi aquatic primate ancestor could explain

0:21:20.880 --> 0:21:25.760
<v Speaker 1>many interesting morphological features of humans that distinguish us from

0:21:25.760 --> 0:21:28.479
<v Speaker 1>our closest relatives like the other great apes. And there

0:21:28.520 --> 0:21:30.679
<v Speaker 1>are a lot of examples of this, like why do

0:21:30.720 --> 0:21:33.240
<v Speaker 1>we have less body hair than the other great apes?

0:21:33.359 --> 0:21:35.560
<v Speaker 1>Why do we have this, you know, smoother skin. And

0:21:35.880 --> 0:21:38.320
<v Speaker 1>his idea was, well, maybe we lost body hair and

0:21:38.359 --> 0:21:41.800
<v Speaker 1>got smooth skin to streamline us for swimming, to reduce

0:21:41.880 --> 0:21:45.119
<v Speaker 1>drag in the water. Um, why do we have a

0:21:45.160 --> 0:21:48.560
<v Speaker 1>thicker layer of subcutaneous fat uh than some of the

0:21:48.600 --> 0:21:50.679
<v Speaker 1>other than I think all the other great apes, and

0:21:51.080 --> 0:21:53.000
<v Speaker 1>his idea here is, well, maybe that's like what we

0:21:53.040 --> 0:21:55.879
<v Speaker 1>see in marine mammals that they use for water insulation

0:21:55.960 --> 0:21:58.280
<v Speaker 1>to help keep their bodies warm. Why do we stand

0:21:58.400 --> 0:22:01.120
<v Speaker 1>upright instead of walking on all fours. The ideas well,

0:22:01.160 --> 0:22:03.520
<v Speaker 1>maybe we had to wade in the shallows and that

0:22:03.640 --> 0:22:06.720
<v Speaker 1>got us standing up. And while it is an interesting idea,

0:22:06.720 --> 0:22:08.560
<v Speaker 1>and I think you know Hardy it was it was

0:22:08.600 --> 0:22:10.439
<v Speaker 1>clever for Hardy to come up with this. I think

0:22:10.520 --> 0:22:14.160
<v Speaker 1>we now have better explanations for a lot of these

0:22:14.160 --> 0:22:17.560
<v Speaker 1>interesting differences between humans and the other gray apes. And

0:22:18.520 --> 0:22:22.200
<v Speaker 1>there's also no direct physical evidence for the aquatic ape theory.

0:22:22.480 --> 0:22:24.879
<v Speaker 1>But to bring it back to the context here is this.

0:22:25.320 --> 0:22:28.720
<v Speaker 1>You're saying that some enthusiasts of the aquatic ape theory

0:22:29.080 --> 0:22:31.600
<v Speaker 1>would believe that our ear canals or features of our

0:22:31.640 --> 0:22:34.240
<v Speaker 1>ear canals would seem to fit in with that list

0:22:34.280 --> 0:22:39.480
<v Speaker 1>of supposed aquatic adaptations. Yeah, I've read e a positioned

0:22:39.560 --> 0:22:43.159
<v Speaker 1>as possible evidence. You know that it's a narrowing of

0:22:43.200 --> 0:22:45.800
<v Speaker 1>the ear canals and keeping with the narrowing of ear

0:22:45.840 --> 0:22:48.960
<v Speaker 1>canals and aquatic mammals, because true enough, the ear canals

0:22:48.960 --> 0:22:52.080
<v Speaker 1>and toothed whales are narrow and clogged with debris and wax.

0:22:52.359 --> 0:22:56.639
<v Speaker 1>In baileeen whale ear canals are plugged with a waxy cap. Now,

0:22:57.000 --> 0:22:59.120
<v Speaker 1>you know, they're obvious problems with this because it's not like,

0:23:00.000 --> 0:23:02.800
<v Speaker 1>you know, there's not some sort of Lamarchian scenario going

0:23:02.800 --> 0:23:05.879
<v Speaker 1>on here where surfers starts surfing and then their ears

0:23:05.960 --> 0:23:09.640
<v Speaker 1>mutate into into weird forms. It's not like the children

0:23:09.640 --> 0:23:14.160
<v Speaker 1>of surfers have have permanently plugged ear holes or anything.

0:23:15.800 --> 0:23:19.119
<v Speaker 1>But maybe the idea would be that we evolved the

0:23:19.119 --> 0:23:22.880
<v Speaker 1>the adaptation that gives our bodies the capability to adapt

0:23:22.960 --> 0:23:26.840
<v Speaker 1>to repeated water exploit or or we would have developed

0:23:26.880 --> 0:23:31.280
<v Speaker 1>the genetic predisposition for for surfers here, and we do

0:23:31.960 --> 0:23:36.480
<v Speaker 1>have a genetic predisposition for surfers here. Uh that that's

0:23:36.560 --> 0:23:40.720
<v Speaker 1>that seems to be the case. But um, I think

0:23:40.760 --> 0:23:43.080
<v Speaker 1>it's it's a stretch to tie it in with this

0:23:43.240 --> 0:23:47.440
<v Speaker 1>uh largely refuted theory. Yeah, well, I mean I want

0:23:47.480 --> 0:23:50.280
<v Speaker 1>to say again, not that we accept the theory or

0:23:50.280 --> 0:23:53.200
<v Speaker 1>would advocate it, but in the defense of this theory,

0:23:53.200 --> 0:23:55.960
<v Speaker 1>I mean, it is interesting to consider, and there's nothing

0:23:56.040 --> 0:24:01.359
<v Speaker 1>inherently implausible about the situation. It imagines no nor insidious.

0:24:01.160 --> 0:24:04.960
<v Speaker 1>It's not like an anti science theory, right, right, right,

0:24:05.000 --> 0:24:10.400
<v Speaker 1>It's just so there's nothing implausible about like prehistoric primates

0:24:10.560 --> 0:24:15.400
<v Speaker 1>migrating to a partially aquatic lifestyle and gaining biological adaptations

0:24:15.400 --> 0:24:18.239
<v Speaker 1>in the process. It happened with other mammals, right, so

0:24:18.280 --> 0:24:20.720
<v Speaker 1>it's not hard to believe that a similar thing could have,

0:24:20.920 --> 0:24:24.320
<v Speaker 1>in principle happened with primates. But the question is, just

0:24:24.640 --> 0:24:27.119
<v Speaker 1>is that what the evidence we have today's supports, And

0:24:27.240 --> 0:24:29.960
<v Speaker 1>I think most experts, for good reasons, think the answer

0:24:30.000 --> 0:24:33.480
<v Speaker 1>is no. U. Most experts today believe the evidence for

0:24:33.560 --> 0:24:37.480
<v Speaker 1>humans having an aquatic ape ancestor doesn't hold up very well. Again,

0:24:37.480 --> 0:24:40.200
<v Speaker 1>there's zero direct evidence of it, so we don't have

0:24:40.320 --> 0:24:43.800
<v Speaker 1>like remains of an aquatic ancestor that just doesn't exist.

0:24:44.600 --> 0:24:47.680
<v Speaker 1>So you're you're having to hypothesize a sort of like

0:24:47.840 --> 0:24:50.960
<v Speaker 1>lost period that we haven't found direct evidence of yet,

0:24:51.000 --> 0:24:55.879
<v Speaker 1>but just reason backwards from traits that exist later. But

0:24:55.920 --> 0:24:58.400
<v Speaker 1>there's a basic question here. I can't I came across

0:24:58.480 --> 0:25:01.960
<v Speaker 1>this on from the writings of some paleo anthropologists, and

0:25:02.000 --> 0:25:05.840
<v Speaker 1>I'm sorry now I'm forgetting the the person's name. But

0:25:06.200 --> 0:25:09.840
<v Speaker 1>here here's the basic answer. If all these traits that

0:25:09.920 --> 0:25:12.440
<v Speaker 1>are they're trying to explain through the aquatic ape theory

0:25:12.480 --> 0:25:16.600
<v Speaker 1>were acquired through an aquatic lifestyle that happened maybe four

0:25:16.640 --> 0:25:19.520
<v Speaker 1>to seven million years ago, why were all the aquatic

0:25:19.560 --> 0:25:24.320
<v Speaker 1>traits retained for millions of years after our ancestors supposedly

0:25:24.320 --> 0:25:27.119
<v Speaker 1>moved back to dry land. You would you would expect,

0:25:27.240 --> 0:25:30.320
<v Speaker 1>like then that these traits would be lost because now

0:25:30.359 --> 0:25:33.680
<v Speaker 1>they'd be vestigil. Yeah, we'd grow all that lovely hair back,

0:25:34.480 --> 0:25:37.200
<v Speaker 1>unless you pose it like, well, actually, it turned out

0:25:37.280 --> 0:25:39.679
<v Speaker 1>once you moved back on the land, there was a

0:25:39.720 --> 0:25:43.280
<v Speaker 1>good reason for retaining that trait. Now now it stayed

0:25:43.320 --> 0:25:46.560
<v Speaker 1>because it served some other survival purpose. But then you

0:25:46.600 --> 0:25:50.120
<v Speaker 1>could just short circuit the aquatic ape situation and say, well,

0:25:50.160 --> 0:25:52.679
<v Speaker 1>maybe we just got those traits because it served some

0:25:52.720 --> 0:25:56.199
<v Speaker 1>other purpose. So, like, like coming back to the the

0:25:56.280 --> 0:25:58.240
<v Speaker 1>hair theory of like the less hair you have, the

0:25:58.280 --> 0:26:00.960
<v Speaker 1>more you're able to show off that parasite free skin. Right,

0:26:01.040 --> 0:26:02.720
<v Speaker 1>that's a common theory. I mean, so there are a

0:26:02.760 --> 0:26:05.880
<v Speaker 1>couple of major theories that exist now to explain why

0:26:06.240 --> 0:26:08.919
<v Speaker 1>humans ancestors lost a lot of the body hair they

0:26:08.920 --> 0:26:11.280
<v Speaker 1>originally had, and we don't know the answer but some

0:26:11.440 --> 0:26:15.240
<v Speaker 1>fairly plausible answers seem to be that that it helped

0:26:15.240 --> 0:26:19.040
<v Speaker 1>with with heat dispersal uh, and that it was maybe

0:26:19.119 --> 0:26:22.600
<v Speaker 1>a very good sexual selection signal. It it showed off,

0:26:22.680 --> 0:26:24.720
<v Speaker 1>I don't have any lice on me because look how

0:26:24.760 --> 0:26:27.480
<v Speaker 1>little hair I have. And it turns out that I

0:26:27.520 --> 0:26:30.480
<v Speaker 1>think there are better explanations like that, And again we

0:26:30.480 --> 0:26:32.960
<v Speaker 1>don't know them for sure, but they seem like very plausible,

0:26:33.320 --> 0:26:36.440
<v Speaker 1>fitting with the evidence, explanations for all of these traits

0:26:36.480 --> 0:26:39.080
<v Speaker 1>that are answered through the aquatic ape theory. So why

0:26:39.080 --> 0:26:40.919
<v Speaker 1>do we stand up on two legs? We don't know

0:26:40.960 --> 0:26:43.600
<v Speaker 1>the answer, but a good candidate for that seems to

0:26:43.640 --> 0:26:46.080
<v Speaker 1>be that we were using our hands for things we

0:26:46.160 --> 0:26:49.520
<v Speaker 1>adapted to have to want to have free hands uh

0:26:49.600 --> 0:26:52.719
<v Speaker 1>and other things like Oh. A common one that's cited

0:26:52.760 --> 0:26:55.800
<v Speaker 1>for the aquatic ap hypothesis is that why do we

0:26:55.840 --> 0:26:59.280
<v Speaker 1>have voluntary control over our breath? Right? We wouldn't need

0:26:59.359 --> 0:27:02.280
<v Speaker 1>that less we were trying to be able to dive

0:27:02.359 --> 0:27:06.440
<v Speaker 1>underwater to get you know, marine mollusks or something is prey.

0:27:06.480 --> 0:27:09.639
<v Speaker 1>But what if we evolved voluntary control of the breath

0:27:09.720 --> 0:27:12.679
<v Speaker 1>because we needed to speak right, to speak to seeing,

0:27:13.160 --> 0:27:15.840
<v Speaker 1>you know, to to communicate with each other with each other,

0:27:16.520 --> 0:27:20.560
<v Speaker 1>that these are activities that require control of breath. Yeah, so,

0:27:20.720 --> 0:27:22.760
<v Speaker 1>I guess my main takeaway is that, you know, I

0:27:22.800 --> 0:27:24.879
<v Speaker 1>don't want to slam aquatic ape too hard. It's not

0:27:24.960 --> 0:27:27.760
<v Speaker 1>like an odious theory or something. It's just that I

0:27:27.800 --> 0:27:31.760
<v Speaker 1>think it's something that is. It's unfortunately sticky, and there

0:27:31.800 --> 0:27:35.160
<v Speaker 1>are better hypotheses more in line with the actual evidence.

0:27:35.200 --> 0:27:38.280
<v Speaker 1>We have to explain the same morphological features that people

0:27:38.480 --> 0:27:41.160
<v Speaker 1>appeal to the aquatic ape theory to explain. All right, well,

0:27:41.160 --> 0:27:42.919
<v Speaker 1>on that note, let's take one more break. But when

0:27:42.960 --> 0:27:45.120
<v Speaker 1>we come back, we will we'll get to some more

0:27:45.160 --> 0:27:49.119
<v Speaker 1>good stuff discussing surfer's ear in human remains but also

0:27:49.160 --> 0:27:54.080
<v Speaker 1>in the remains of Neanderthals. Thank alright, we're back. So

0:27:54.800 --> 0:27:57.080
<v Speaker 1>I think all this stuff about surfer's ear is fascinating

0:27:57.080 --> 0:27:59.200
<v Speaker 1>in and of itself. But the the extra cool thing

0:27:59.280 --> 0:28:03.280
<v Speaker 1>here is that surfer's ear is detectable in human remains, right,

0:28:03.320 --> 0:28:06.440
<v Speaker 1>because it's not just soft flesh. They're like bony protroser. Yes,

0:28:06.960 --> 0:28:09.800
<v Speaker 1>so we can we can look to coastal humans of

0:28:09.840 --> 0:28:13.200
<v Speaker 1>the past and judge to what degree they were interacting

0:28:13.240 --> 0:28:16.600
<v Speaker 1>with cold water, and then we can also based on that,

0:28:16.640 --> 0:28:20.000
<v Speaker 1>determine how such acts were divided between the genders based

0:28:20.040 --> 0:28:26.080
<v Speaker 1>on the skeletal remains. For instance, in December of researchers

0:28:26.080 --> 0:28:30.199
<v Speaker 1>from Washington University in St. Louis discovered skeletal evidence of

0:28:30.280 --> 0:28:34.040
<v Speaker 1>surfer's ear in a pre Columbian Panamanian village. They were

0:28:34.040 --> 0:28:36.359
<v Speaker 1>looking at a hundred and twenty five skulls from nine

0:28:36.359 --> 0:28:39.840
<v Speaker 1>burial sites, and they found seven cases in males, one

0:28:39.880 --> 0:28:42.680
<v Speaker 1>in female. So this is this is interesting. You think

0:28:42.720 --> 0:28:44.920
<v Speaker 1>of Panama and you think of you You You may think

0:28:44.960 --> 0:28:48.000
<v Speaker 1>of warmer waters, but the water in the Gulf of

0:28:48.040 --> 0:28:51.680
<v Speaker 1>Panama is actually quite cold between January and April. And

0:28:51.720 --> 0:28:55.000
<v Speaker 1>the researchers believe that the divers here, that the remains

0:28:55.000 --> 0:28:59.040
<v Speaker 1>that they found were likely specialized pearl divers UH probably

0:28:59.080 --> 0:29:02.720
<v Speaker 1>going after stuff like like mother of pearl or um

0:29:02.840 --> 0:29:05.440
<v Speaker 1>or the orange and purple pearls that derived from two

0:29:05.520 --> 0:29:08.800
<v Speaker 1>species of thorny oysters. These were These were popular in

0:29:08.840 --> 0:29:12.560
<v Speaker 1>the region and you also find these artifacts among the

0:29:12.920 --> 0:29:17.520
<v Speaker 1>very dead in these grave sites. Also, Spanish explorers would

0:29:17.600 --> 0:29:20.480
<v Speaker 1>later record the activities of such pearl divers as well

0:29:20.520 --> 0:29:22.880
<v Speaker 1>as you know, staying there. They were trained since childhood

0:29:22.920 --> 0:29:26.640
<v Speaker 1>to dive down four fathoms that's twenty four ft or

0:29:26.680 --> 0:29:29.440
<v Speaker 1>seven point three meters deep. My ears are hurt and

0:29:29.480 --> 0:29:32.880
<v Speaker 1>just thinking about that. Uh. So you know, surface certainly

0:29:32.920 --> 0:29:34.960
<v Speaker 1>like these would have been individuals diving down into those

0:29:35.000 --> 0:29:38.720
<v Speaker 1>cold waters of training from an early age and developing

0:29:39.000 --> 0:29:42.720
<v Speaker 1>these bony protrusions that would that were then detectable. Um

0:29:42.760 --> 0:29:45.800
<v Speaker 1>you know, you know ages later when we look back

0:29:45.840 --> 0:29:48.480
<v Speaker 1>and try and figure out how they lived. So you know,

0:29:48.520 --> 0:29:50.760
<v Speaker 1>it's a little things like that that are insightful about it.

0:29:50.960 --> 0:29:53.120
<v Speaker 1>But of course we're talking about the recent past. We're

0:29:53.160 --> 0:29:57.080
<v Speaker 1>talking about human remain you know, Almo Sapiens, is there

0:29:57.280 --> 0:29:59.760
<v Speaker 1>is there a reason you brought up Neandertells early on.

0:30:00.000 --> 0:30:02.560
<v Speaker 1>I feel like, yes, we've got a connection here, and

0:30:02.560 --> 0:30:05.440
<v Speaker 1>that's because there's a very recent study and this one

0:30:05.720 --> 0:30:09.520
<v Speaker 1>came from Washington University. Uh, Eric trink Us at All,

0:30:10.400 --> 0:30:16.280
<v Speaker 1>author to paper External auditory exostosis among Western Eurasian late

0:30:16.320 --> 0:30:19.160
<v Speaker 1>Middle and Late Pleistocene humans, and this was published in

0:30:19.200 --> 0:30:23.320
<v Speaker 1>Plos one. So, uh, just a refresher about the Neanderthals

0:30:23.320 --> 0:30:25.200
<v Speaker 1>who we've we've talked about on the show before and

0:30:25.240 --> 0:30:28.600
<v Speaker 1>we'll continue to talk about because there's always some sort

0:30:28.640 --> 0:30:32.880
<v Speaker 1>of cool Neanderthal related story coming out. Uh. They are

0:30:32.920 --> 0:30:36.520
<v Speaker 1>our closest extinct relatives. They lived in Eurasia two hundred

0:30:36.560 --> 0:30:40.640
<v Speaker 1>thousand to thirty thousand years ago. We don't know exactly

0:30:40.720 --> 0:30:44.960
<v Speaker 1>what happened to the Neanderthals. They likely transitioned from they

0:30:45.000 --> 0:30:49.320
<v Speaker 1>were out likely originally translition transition from Homo antecessor to

0:30:49.400 --> 0:30:53.040
<v Speaker 1>Homo neanderthal insis a hundred and fifty thousand years ago,

0:30:53.280 --> 0:30:56.600
<v Speaker 1>and then they went extinct thirty thousand years ago. Now

0:30:56.600 --> 0:30:58.800
<v Speaker 1>we're continuing to learn a great deal about them, how

0:30:58.840 --> 0:31:01.760
<v Speaker 1>they differed from a physically, but also what their culture

0:31:01.800 --> 0:31:06.560
<v Speaker 1>may have consisted of. They were ideal cold weather hominids,

0:31:06.600 --> 0:31:10.360
<v Speaker 1>shorter and stockier than Homo sapiens. They had large brains,

0:31:10.400 --> 0:31:12.760
<v Speaker 1>but it seems that their brains were were far more

0:31:12.760 --> 0:31:17.080
<v Speaker 1>suited for intense visual processing rather than social processing, which

0:31:17.080 --> 0:31:19.760
<v Speaker 1>would have been needed in the lower light northern climates

0:31:19.800 --> 0:31:22.760
<v Speaker 1>of Europe. Homo sapiens, on the other hand, are ultimately

0:31:22.800 --> 0:31:26.880
<v Speaker 1>the evolutionary project product of higher light regions of Africa.

0:31:27.840 --> 0:31:32.400
<v Speaker 1>So enter this new study from Eric Trinkaus. At All,

0:31:33.320 --> 0:31:36.080
<v Speaker 1>they examined well preserved ear canals and the remains of

0:31:36.160 --> 0:31:41.360
<v Speaker 1>seventy seven ancient humans, including Neanderthals and early modern humans

0:31:41.400 --> 0:31:45.840
<v Speaker 1>of the Middle too late Plicetocene epoch of western Eurasia.

0:31:46.040 --> 0:31:50.000
<v Speaker 1>So the rate of Homo Sapiens surfers ear was more

0:31:50.080 --> 0:31:53.760
<v Speaker 1>or less standard. But half of the twenty three Neanderthals

0:31:53.760 --> 0:31:58.520
<v Speaker 1>sampled had E A and their cases were mild to severe,

0:31:58.680 --> 0:32:00.960
<v Speaker 1>and we're seeing at roughly twice us the frequency of

0:32:01.000 --> 0:32:05.640
<v Speaker 1>Homo Sapiens examples. So the obvious explanation would be that

0:32:05.720 --> 0:32:10.440
<v Speaker 1>Neanderthals simply foraged in cold waters more than Homo sapiens,

0:32:10.440 --> 0:32:13.240
<v Speaker 1>and that might well have been part of it. Certainly

0:32:13.480 --> 0:32:16.360
<v Speaker 1>it highlights that the water, the cold waters were part

0:32:16.360 --> 0:32:20.160
<v Speaker 1>of their foraging, uh, you know, realm. But it also

0:32:20.200 --> 0:32:22.600
<v Speaker 1>could mean that they just had an even greater genetic

0:32:22.640 --> 0:32:25.920
<v Speaker 1>predisposition for E A. Because again, humans have a pre

0:32:26.520 --> 0:32:29.240
<v Speaker 1>disposition for E A. Uh, and we we see that

0:32:29.280 --> 0:32:32.960
<v Speaker 1>in modern human genetics as well. So here's just a

0:32:33.000 --> 0:32:36.400
<v Speaker 1>quick quote from from drink House about the study. Quote.

0:32:36.400 --> 0:32:42.080
<v Speaker 1>An exceptionally high frequency of external auditory exotosis among Neanderthals

0:32:42.240 --> 0:32:46.680
<v Speaker 1>and a more modest level among high latitude earlier Upper Paleolithic,

0:32:47.000 --> 0:32:51.400
<v Speaker 1>modern humans indicate a higher frequency of aquatic resource exploitation

0:32:51.680 --> 0:32:54.440
<v Speaker 1>among both groups of humans than is suggested by the

0:32:54.520 --> 0:32:58.840
<v Speaker 1>archaeological record. In particular, it reinforces the foraging abilities and

0:32:58.880 --> 0:33:02.479
<v Speaker 1>resource diversity of the Neanderthals. Well, that's interesting. So it's

0:33:02.520 --> 0:33:07.239
<v Speaker 1>saying that this is an indication that maybe humans and

0:33:07.360 --> 0:33:11.080
<v Speaker 1>especially Neanderthals of the time, we're spending more time foraging

0:33:11.160 --> 0:33:14.400
<v Speaker 1>in the water than other evidence in the archaeological record

0:33:14.440 --> 0:33:19.040
<v Speaker 1>would predict. Just another example of possible evidence for for

0:33:19.080 --> 0:33:24.320
<v Speaker 1>Neanderthal exploitation of marine resources for for food or whatever.

0:33:24.520 --> 0:33:26.360
<v Speaker 1>Is A is a paper I was looking at from

0:33:26.600 --> 0:33:28.760
<v Speaker 1>P and A s from two thousand and eight by

0:33:28.840 --> 0:33:31.720
<v Speaker 1>Stringer at all that found is I was looking at

0:33:31.760 --> 0:33:35.720
<v Speaker 1>the Gibraltar region and the authors said that what we

0:33:35.760 --> 0:33:39.680
<v Speaker 1>find indications that Neanderthals had knowledge of the geographic distribution

0:33:39.720 --> 0:33:42.720
<v Speaker 1>and behavior of their prey. We present here the evidence

0:33:42.720 --> 0:33:47.520
<v Speaker 1>from Gibraltar sites showing that Middle Paleolithic humans exploited not

0:33:47.640 --> 0:33:51.959
<v Speaker 1>only mollusks, but also seals, dolphins, and fish through a

0:33:51.960 --> 0:33:55.320
<v Speaker 1>wide spread of time. Dolphins and seals. So we got

0:33:55.840 --> 0:34:01.240
<v Speaker 1>Neanderthals of the period potentially hunting marine mammals. Not quite wailing,

0:34:01.280 --> 0:34:04.560
<v Speaker 1>but a modest form of marine mammal hunting. And yeah,

0:34:04.600 --> 0:34:08.000
<v Speaker 1>and then in the process of doing it, developing surfers

0:34:08.000 --> 0:34:11.080
<v Speaker 1>here possibly to the point of of deafness. And and

0:34:11.120 --> 0:34:13.720
<v Speaker 1>by the way, there's a there's another paper and paper.

0:34:13.800 --> 0:34:18.000
<v Speaker 1>It was also from drink Us from Seen, in which

0:34:18.719 --> 0:34:21.719
<v Speaker 1>he and his team found an old, older Neanderthal from

0:34:21.760 --> 0:34:25.880
<v Speaker 1>about fifty thousand years ago who had suffered multiple injuries

0:34:25.880 --> 0:34:29.280
<v Speaker 1>and become deaf. As such, he argued that the elder

0:34:29.360 --> 0:34:31.640
<v Speaker 1>must have relied on the help of others to avoid

0:34:31.640 --> 0:34:35.160
<v Speaker 1>prey and survive well into his forties. So, you know,

0:34:35.200 --> 0:34:38.239
<v Speaker 1>sort of like sandwiching these two separate studies together, it

0:34:38.400 --> 0:34:40.919
<v Speaker 1>like it kind of paints this picture, you know, of

0:34:41.000 --> 0:34:45.160
<v Speaker 1>these you know, these these these Neanderthals of foraging in

0:34:45.160 --> 0:34:48.319
<v Speaker 1>the cold waters, diving down for mala's, going after these

0:34:48.440 --> 0:34:52.360
<v Speaker 1>uh uh, these other marine creatures, and in doing so,

0:34:52.520 --> 0:34:55.400
<v Speaker 1>like the the the older members of the society, at

0:34:55.480 --> 0:34:57.520
<v Speaker 1>least the ones that are that are engaged in the

0:34:57.800 --> 0:35:00.560
<v Speaker 1>aquatic foraging, uh you know, going death and then having

0:35:00.560 --> 0:35:04.040
<v Speaker 1>to depend on other members of their society to survive.

0:35:05.000 --> 0:35:07.400
<v Speaker 1>So I know you've been picturing them as Patrick Swayze,

0:35:07.520 --> 0:35:11.000
<v Speaker 1>the entire time. Well no, but but for some reason,

0:35:11.000 --> 0:35:13.400
<v Speaker 1>when I first read the headline, like last week or

0:35:13.400 --> 0:35:16.640
<v Speaker 1>the week before, my my mind instantly went to point break.

0:35:17.160 --> 0:35:20.200
<v Speaker 1>It is the surfing movie. Uh par excellence. Wait what

0:35:20.280 --> 0:35:23.320
<v Speaker 1>about what about Surf Ninja's. I've never seen Surf Ninjas

0:35:23.320 --> 0:35:25.120
<v Speaker 1>can't vouch for it, I have anything. I guess we'll

0:35:25.120 --> 0:35:26.960
<v Speaker 1>have to come back and check out Surf ninja Is.

0:35:27.000 --> 0:35:29.120
<v Speaker 1>I just looked it up. Oh it has Rob Schneider

0:35:29.160 --> 0:35:35.040
<v Speaker 1>in it. One don't know, uh not that I can

0:35:35.120 --> 0:35:38.200
<v Speaker 1>see right here, and unletus he's a cameo. Okay, it's

0:35:38.200 --> 0:35:42.640
<v Speaker 1>goot Leslie Nielsen, tone Loke, Rob Schneider, Ernie Reyes Jr.

0:35:43.680 --> 0:35:46.160
<v Speaker 1>And All Star Gas. All right, well we'll have to

0:35:46.239 --> 0:35:50.000
<v Speaker 1>leave it there. But you know again, Neanderthal's continue to

0:35:50.000 --> 0:35:52.360
<v Speaker 1>be a topic of interest, and they're just there's always

0:35:52.400 --> 0:35:55.760
<v Speaker 1>so many. There are always so many great, uh potentially

0:35:55.760 --> 0:35:58.319
<v Speaker 1>interesting studies that are coming out about them. So I'm

0:35:58.320 --> 0:35:59.920
<v Speaker 1>sure we'll come back to the world at the end

0:36:00.000 --> 0:36:03.279
<v Speaker 1>at Alls in the future on Stuff to Blow Your Mind.

0:36:03.760 --> 0:36:05.160
<v Speaker 1>In the meantime, if you want to check out other

0:36:05.160 --> 0:36:07.000
<v Speaker 1>episodes of Stuff to Blow your Mind, head on over

0:36:07.040 --> 0:36:08.920
<v Speaker 1>to Stuff to blow your Mind dot com. You can

0:36:08.920 --> 0:36:12.560
<v Speaker 1>also find our other show, Invention at invention pod dot com. UH.

0:36:12.600 --> 0:36:16.200
<v Speaker 1>That's our our journey through human techno history looking at

0:36:16.280 --> 0:36:18.920
<v Speaker 1>various inventions. We haven't done one on the surfboard, but

0:36:19.000 --> 0:36:20.799
<v Speaker 1>that's exactly the kind of thing we could do because

0:36:20.800 --> 0:36:22.640
<v Speaker 1>we try, and we've been trying to cover a wide

0:36:22.680 --> 0:36:27.560
<v Speaker 1>variety of inventions, from like major recent technologies to ancient

0:36:27.600 --> 0:36:31.359
<v Speaker 1>in inventions that are lost to time, from you know,

0:36:31.400 --> 0:36:34.200
<v Speaker 1>from the the advanced and the and and the to

0:36:34.320 --> 0:36:37.200
<v Speaker 1>the simple, from the obvious, uh, to the to the

0:36:37.239 --> 0:36:40.000
<v Speaker 1>far less obvious. So check out that show if you

0:36:40.040 --> 0:36:42.120
<v Speaker 1>haven't already, and if you want to support these shows

0:36:42.120 --> 0:36:44.200
<v Speaker 1>that we're putting together for you, the best thing you

0:36:44.200 --> 0:36:47.000
<v Speaker 1>can do is tell your friends about us. Wherever you

0:36:47.080 --> 0:36:49.400
<v Speaker 1>get the podcast, rate and review us, leave us some

0:36:49.480 --> 0:36:52.080
<v Speaker 1>stars and a nice comment that helps us out a lot.

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<v Speaker 1>Huge thanks as always to our excellent audio producer Maya Cole.

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<v Speaker 1>If you'd like to get in touch with us with

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<v Speaker 1>feedback on this episode or any other, to suggest topic

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<v Speaker 1>for the future, just to say hello, you can email

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<v Speaker 1>us at contact at stuff to Blow your Mind dot com.

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<v Speaker 1>Stuff to Blow Your Mind is a production of iHeart

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<v Speaker 1>Radios How stuff Works. For more podcasts from my heart Radio,

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<v Speaker 1>visit the iHeart Radio app, Apple Podcasts, or wherever you

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<v Speaker 1>listen to your favorite shows.