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Stuff You Should Know

Selects: How Extinction Works

01 Nov 2025

Transcription

Chapter 1: What is the main topic discussed in this episode?

0.031 - 3.763 Unknown

This is an iHeart Podcast. Guaranteed human.

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4.435 - 17.328 Stephen Curry

I'm Stephen Curry, and this is Gentleman's Cut. I think what makes Gentleman's Cut different is me being a part of developing the profile of this beautiful finished product. With every sip, you get a little something different.

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17.949 - 32.683 Unknown

Visit Gentleman'sCutBourbon.com for your nearest Total Wines or BevMo. This message is intended for audiences 21 and older. Gentleman's Cut Bourbon, Boone County, Kentucky. For more on Gentleman's Cut Bourbon, please visit Gentleman'sCutBourbon.com.

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33.024 - 40.631 Josh Clark

Please enjoy responsibly. Hi, Kyle. Could you draw up a quick document with the basic business plan? Just one page as a Google Doc and send me the link. Thanks.

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41.131 - 45.555 Unknown

Hey, just finished drawing up that quick one page business plan for you. Here's the link.

46.056 - 66.951 Josh Clark

But there was no link. There was no business plan. I hadn't programmed Kyle to be able to do that yet. I'm Evan Ratliff here with a story of entrepreneurship in the AI age. Listen as I attempt to build a real startup run by fake people. Check out the second season of my podcast, Shell Game, on the iHeartRadio app or wherever you get your podcasts. Michael Lewis here.

67.712 - 84.441 Josh Clark

My best-selling book, The Big Short, tells the story of the buildup and burst of the US housing market back in 2008. A decade ago, The Big Short was made into an Academy Award-winning movie. Now I'm bringing it to you for the first time. as an audiobook narrated by yours truly.

84.922 - 110.193 Josh Clark

The Big Short story, what it means to bet against the market, and who really pays for an unchecked financial system, is as relevant today as it's ever been. Get The Big Short now at pushkin.fm slash audiobooks, or wherever audiobooks are sold. Hello, friends. It's Josh, and I'm back with The Select. And this week, I've selected our 2014 episode on extinction.

110.974 - 130.798 Josh Clark

In this episode, we go over all the big extinctions and what probably caused them, including the one we're most likely in right now, which is probably caused by humans. And if you pay attention, you can start to notice the little glimmers, the little beginnings of what would become my side podcast, The End of the World with Josh Clark.

Chapter 2: What is extinction and why is it significant?

284.368 - 306.374 Josh Clark

Was that the one? I think so. I mean, he was definitely on that one. Yeah. But that was the one also where I think... Yeah, he makes fun of people with saggy pants because it was so new. Right. Apparently Busta Rhymes wasn't down with it yet. Yeah. Which is pretty ironic because he got hardcore into that. That was Raw Raw Like a Dungeon Dragon, right? Right, right. It was pretty awesome.

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306.394 - 336.734 Josh Clark

It's a good song. Yeah. So Extinction is clearly what we're talking about today. And I guess we should probably give a shout out to some of the extra reading material. Yeah, man. We picked up on. There's a woman named Elizabeth Colbert or Colbert, depending on if you watch the Colbert Report. Yeah. She is basically a leading expert as far as journalists go on extinction.

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336.754 - 355.358 Josh Clark

She wrote a book called The Sixth Extinction. That's a good article. Yeah, and she wrote an article in The New Yorker. She's a New Yorker journalist. That was basically the predecessor to the book. You know how they do. They're like, oh, I need an extra 20 grand, so I'll just write a synopsis of the book I'm writing. And it's a good article, and we work from that.

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355.759 - 373.008 Josh Clark

There's another one from the New York Review of Books called They're Taking Over about the explosion of jellyfish. On How Stuff Works, there's one that I wrote years back called Will We Soon Be Extinct? And there's another HowStuffWorks one that we've done an episode on called Why is Biodiversity Important?

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373.529 - 399.786 Josh Clark

Yeah, and I found one in an io9 for animals that we thought were extinct but miraculously popped back up. Nice. Which is always a good story. Oh, yeah, it's a heartwarming story of triumph over adversity and coming back when everybody thought you were down. Yeah, some of them like... It's basically rocky. Hundreds of millions of years later even. Yeah. It's crazy. Like the silicant?

399.806 - 425.691 Josh Clark

I think that's one of them. Is that the big fish? Mm-hmm. Yeah. They just caught that thing one day. Yeah. And said, hey, wait a minute. Yeah. This thing's extinct. It's supposed to be. Exactly. And we'll talk about how and why... things fall off, but things do fall off. And it seems that the whole thing is a very natural process, extinction is.

426.432 - 454.005 Josh Clark

But for a very long time, I guess scientists believed that God created all of the animals on earth and and that his will was too perfect, his creation was too divine to even allow for extinction. So, because they were aware of the fossil record, they rationalized these huge bones of animals they didn't see anywhere as, we just haven't found them yet.

453.985 - 477.549 Josh Clark

Well, yeah, and this was all the way up into the 19th century, and some really smart people like Thomas Jefferson thought, for instance, when he sent Lewis and Clark out west, that they might come across the Great Mastodon. He's like, it's bound to be out there somewhere, guys, so be careful. But there were some other smarter people. like George Cuvier in 1812, he was pretty ahead of his time.

478.11 - 502.94 Josh Clark

In fact, in 1812, he was way ahead of his time because he published an essay called Revolutions on the Surface of the Globe. Yeah. And he kind of asserted that, no, things can go extinct. And he called them a species produce lost species. Right. And basically hypothesized that there have been cataclysmic events that have caused extinctions. Right. In so many words.

Chapter 3: What are the historical perspectives on extinction?

1450.805 - 1475.929 Josh Clark

And because of that, large animals started to go extinct because they like to eat the small animals. Exactly, which is the answer to the question, why is biodiversity important? Well, because ecosystems thrive and survive on a wide number of species that exist pretty much naturally in balance. Yeah. You know, a pretty good example of that stuff falling out of balance is the passenger pigeon.

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1476.449 - 1502.35 Josh Clark

You familiar? Yeah, they're trying to de-extinct that thing. Yeah, you want to talk about de-extinction? Yeah, well, de-extinction is exactly what it sounds like. It is sort of Jurassic Park-y. It is, in 2003, some scientists revived the Burkardo, Bukardo, And that's a Spanish mountain goat. And they did it just sort of like Jurassic Park from DNA that was frozen in time.

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1503.051 - 1527.475 Josh Clark

Unfortunately, although it did work initially, the DNA only survived a matter of minutes. But it did count as a de-extinction. I think there was a live birth that survived a few minutes, wasn't it? Yeah, the animal itself only survived a few minutes, though. Right. It was like, I should not be. That's true.

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1528.366 - 1548.305 Josh Clark

I mean, they basically said it's happening now and we have the capabilities and we may not be able to bring the woolly mammoth back, but we might be able to bring back something kind of close. Right. And that raises in this article that you sent just this moral question, like, should we be doing this? Just because we can, does that mean we should?

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1548.345 - 1561.32 Josh Clark

And so, like, if you bring back an animal that has been extinct for so long that its habitat is now gone. Yeah, where are they going to live? Exactly. Where are you going to put it? A zoo? That doesn't seem like a good reason to bring an animal back so we could put it in a zoo.

1562.061 - 1579.787 Josh Clark

Yeah, and just like maybe this is my opinion here, which we don't do a lot of, but it seems like concentrating on the problems we face now with the extinction rates is something that we should concentrate on, not bringing back the woolly mammoth. Right, and that also kind of dovetails with the point that

1579.767 - 1601.999 Josh Clark

If we have this ability and routinely exercise it, we may be less inclined to protect the stuff we have now. If it's important enough, we'll just genetically re-engineer it and bring it back later. Yeah, I think in the CNN article, they liken it to just thinking we have an undo button on the world. Control-Z. Yeah, no good. No.

1602.019 - 1624.173 Josh Clark

And it's funny because the author doesn't realize that Control-Z works outside of Microsoft Word, too. I'm not sure. He specifically mentioned Control-Z and Microsoft Word. Oh. Word, specifically? Microsoft Word, he said it. Yeah, that's a little weird. He could be a shill, and he was just working it in. Maybe. You know? Well, on Macs, though, it's not Control.

1624.594 - 1648.823 Josh Clark

Maybe he just meant Microsoft and awkwardly put in Word. Maybe. Or maybe that's the only program he knows. How do I work this? So you were saying that they're trying to bring back the passenger pigeon, right? Yeah. So the passenger pigeon is this really neat example of what happens when you have a lack of biodiversity. Yeah.

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