New Normal?

Summary

Radiolab: “New Normal?” — Episode Summary

Podcast: Radiolab (WNYC Studios)
Hosts: Jad Abumrad, Robert Krulwich
Date: October 19, 2009
Theme: Exploring the possibility of fundamental human (and animal) change—particularly whether our seemingly "ingrained" tendencies like violence, identity, and sociability are truly immutable, or whether choice, environment, and time can reshape what seems inevitable.

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Episode Overview

Radiolab hosts Jad Abumrad and Robert Krulwich guide listeners through a series of stories that challenge the notion that "human nature" (or animal nature) is fixed—especially regarding violence and identity. Using scientific case studies and real-life narratives, the hosts question whether peace, tolerance, and transformation on a personal and societal level are possible, or whether we are simply destined to repeat our inherited patterns.

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Key Discussion Points and Insights

1. Is Human Violence Inevitable? (00:11–03:56)

• John Horgan, a science writer and teacher, surveys people on whether war will ever end.
• Results are disheartening: Most believe war is an intrinsic part of human nature, attributing it to greed and aggression.
• The notion that violence is “too ingrained in our human nature” is widespread.

2. Can Animal Cultures Change? The Baboon Case Study (03:56–19:13)

• Robert Sapolsky, a Stanford neuroscientist, tells a remarkable story about a troop of baboons.
• After an outbreak of tuberculosis (spread via a tourist lodge garbage dump), all the highly aggressive alpha males die.
• The surviving troop changes radically:
  • Aggression drops dramatically; grooming and positive social behaviors increase.
  • Even as new, outside males join, the peaceful culture persists.
• The shift endures for over 20 years, puzzling scientists who assumed these behaviors were genetically predetermined.
• Memorable Quote:
  • “The new guys are learning. We don't do stuff like that here.” — Robert Sapolsky (13:35)
• Sapolsky’s Hypothesis:
  • The peaceful culture is reinforced by the females’ social interactions with new males.
  • Early grooming by females “melts away” the aggressiveness.
• Caveat from Evolutionary Biologist Richard Wrangham:
  • Cautions this is an exceptional, not typical, case, and that deep structural change likely requires genetic as well as cultural change.
  • “A baboon is basically a baboon until you get some kind of genetic change.” (17:13)
• Implication:
  • Even brief windows of cultural change can last and become "normal"—perhaps offering hope for human society.

3. Small Town, Big Change: Electing a Transgender Mayor (19:41–39:02)

• Story of Stu Rasmussen, a lifelong resident of Silverton, Oregon (pop. ~9,000), who transitions to an openly transgender identity and is eventually elected mayor.
• Stu’s journey:
  • Begins with painted nails, then public cross-dressing, then breast augmentation, all while running the only local theater and serving on civic boards.
  • Town’s reaction ranges from curiosity and gossip to outright disapproval and bigotry, with some worried for the town’s image.
• The turning point:
  • External protestors (from Westboro Baptist Church) come to town to denounce Stu.
  • The community responds with a massive cross-dressing counterprotest—an affirmative gesture of local support.
• Memorable Quotes:
  • “I tried to discourage people from even giving them the time of day, saying, don’t give them any attention. I couldn’t get that to happen... 200 people, men in dresses, grandmothers, babies. It’s just amazing. That was the town; that wasn’t me.” — Stu Rasmussen (38:14)
  • “Under the right circumstances, a small town can be like, the most progressive place on earth.” — Jad Abumrad (34:16)
• Insight:
  • Real change is possible—and can stick—when personal relationships, gradual transformation, and the "forced intimacy" of a small community break down stereotypes.

4. How Fast Can Nature Change? The Russian Fox Experiment (40:34–55:04)

• The story of Dmitri Belyaev’s Siberian fox domestication experiment.
  • Belyaev selectively breeds silver foxes for tameness and against aggression under the guise of fur farming (to avoid Stalin-era persecution).
  • Within just 10 years, foxes become friendly, tail-wagging, and even puppy-like.
  • Along with behavioral change, physical traits also shift accidentally: floppy ears, spotted coats, smaller teeth, thinner bones (“neoteny” or juvenile traits retained into adulthood).
• Memorable Exchange:
  • “How long do you think it would take to get foxes from being wild animals to... licking your face?” — Robert Krulwich
  • “A long, long time....” — Jad Abumrad
  • “Well, here’s the thing. Ten years is the answer.” — Robert Krulwich (44:56)
• Scientific Insights:
  • Changes stem from selection on neural crest cells in embryos, which shape not just behavior (adrenal response/fear), but also ears, fur, teeth, and bones.
  • “When you select against aggression in animals, you’re changing the timing and the rate of development such that the experimental foxes are actually frozen as juveniles. They actually never really grow up.” — Brian Hare (50:01)
• Parallels to Human Evolution:
  • Humans, too, have trended toward smaller teeth and more gracile (less robust, more delicate) bones over tens of thousands of years—a "self-domestication" process that may correspond to increased sociability and reduced aggression.
  • Wrangham and others speculate that as humans formed larger, more stable communities, cooperation—and the elimination of bullies—favored these changes.

5. Final Reflections: Are We Destined for Gentleness? (55:04–56:34)

• Societies may continue “self-domesticating” as populations grow and peaceful cooperation becomes increasingly necessary.
• Memorable Quote:
  • “The winners will be the domesticated ones. Everyone will get more empathetic to each other because that’s the only way you survive. And we get gentler and gentler and gentler till lambs literally lie down with lions.” —Robert Krulwich, summarizing Wrangham’s theory (55:04)

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Notable Quotes (with Timestamps & Attribution)

• “Will humans ever stop fighting wars once and for all?” — John Horgan’s street survey (00:48)
• “Too ingrained in our human nature.” — Various survey respondents (03:20)
• “The new guys are learning. We don't do stuff like that here.” — Robert Sapolsky on baboons (13:35)
• “So the ladies hang back while he’s out there biting and clawing... But if you make one small change, just remove the alpha male … everything is different.” — Sapolsky on the mechanism for change (15:07)
• “A baboon is basically a baboon until you get some kind of genetic change.” — Prof. Richard Wrangham (17:13)
• “Under the right circumstances, a small town can be like, the most progressive place on earth.” — Jad Abumrad (34:16)
• “200 people, men in dresses, grandmothers, babies. It’s just amazing. That was the town; that wasn’t me.” — Stu Rasmussen (38:14)
• “How long do you think it would take to get foxes from being wild, ferocious animals to being animals who would lick your... face after this kind of…?” — Krulwich (44:40)
• “Ten years is the answer.” — Brian Hare (44:56)
• “...neural crest cells... the argument is that actually when you select against aggression in animals, you’re changing the timing and the rate of development such that the experimental foxes are actually frozen as juveniles. They actually never really grow up.” — Brian Hare (50:01)
• “We have domesticated ourselves.” — Wrangham (53:57)
• “The winners will be the domesticated ones... and we get gentler and gentler and gentler till lambs literally lie down with lions.” — Krulwich (55:04)

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Important Segment Timestamps

• Introduction & War Survey: 00:11–03:56
• Baboons & Cultural Change: 03:56–19:13
• Small-Town Change (Stu Rasmussen): 19:41–39:02
• The Russian Foxes—Fast Evolution: 40:34–55:04
• Theoretical Human Self-Domestication: 51:12–55:04
• Final Reflections: 55:04–56:34

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Tone & Style

• Inquisitive, hopeful but skeptical, with a sense of humor and wonder.
• The episode blends personal narrative, field science, and evolutionary theory into an engaging storytelling format.

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Summary

Radiolab’s “New Normal?” challenges notions of ‘fixed’ human or animal nature. Whether it’s baboons forming unexpectedly peaceful societies after catastrophe, a conservative town embracing a transgender mayor, or Russian foxes becoming puppy-like in a decade, the show argues that choice, culture, environment, and selection can all upend what we think is “normal.” While some changes take root slowly or in unexpected ways, there is reason—however modest—for hope that even deeply-embedded traits can change with the right trigger, context, or collective will.

Transcript

[A]

You're listening to Radiolab from. From WNY and npr. Okay, you ready?

[B]

Yep.

[A]

All right, let's open the show today. Test, test, test. On a sunny street corner in New Jersey. So where are we now? We are on Washington street, which is the main thoroughfare in Hoboken. It's a nice day in Hoboken. People are out and about after work. Is that sangria? What are you guys doing here? And we're here with a guy. His name's John Horgan. I'm a sc. He's also a teacher. It is hot. And John is out today with our producer Lulu Miller, doing what he often does, which is to go up to someone he doesn't know. Me, sir, we're doing a survey. It'll only take a minute. At most a minute I can give you. And he asks them this one question. Here's the question. Will humans ever stop fighting wars once and for all?

[C]

No. Because of greed and one upsmanship.

[A]

To explain, John has been asking this question. Will humans ever stop fighting wars? For years. Because for him, this question, it's not just about war. It gets at something really basic. Do we feel we can change who we are? Any case, the first time it popped out of his mouth, it was 2003, and a friend had asked him to give a talk at a church just a few days after the first invasion of Iraq. And so here I was in this church, and I can remember the mood was very somber. I was determined to try to make people feel that, okay, this is a.

[D]

Setback, but still, you've got to believe.

[A]

That peace is possible.

[D]

And I tried to list all the reasons.

[A]

And as he was making his case and getting worked up, he looked at the 60 or so people who were there in the audience. He said, all right, how many of you here believe that war will end someday? And I think one or two people raised their hands out of 60. And John thought, wait, is this really who we are? And so that's actually when I started reading as much as I can about all these things and dug up some surveys from the 1980s. What he found was that about 20 years ago, people were asking this question, do you think war will ever end? Taking surveys. Now, granted, they were not the most scientific of surveys, but what the results seem to indicate is that we used to be optimistic. Back in the 80s, only one in three thought that war was inevitable.

[B]

Huh.

[A]

It was a minority.

[C]

Yeah.

[A]

Whereas today, will humans ever stop fighting wars once and for all? If you take that question to the streets of Hoboken as We did. You will find.

[C]

No.

[A]

No, no, no, no, no. About nine out of ten people say no. Yes. Yeah, I think so.

[C]

No.

[E]

No, Never.

[A]

No, never. No. Now, depressingly, the worst part is that when he asked them the next question, why do you think this? Invariably, he gets something like, I think there's a human nature for greed and to always want more. It's just human nature. A lot of people are big, dumb animals and they're just going to keep fighting over useless things. It's just the way people are. And I don't think we're ever gonna learn. Why do you say that? I just think that it's too ingrained in our human nature.

[B]

So, so, so, so, so, so we.

[A]

Want to challenge that last statement. Too ingrained in our human nature. That one. Okay. We know some things have been handed down to us from our primate ancestors. Violence, maybe. Who knows? Question is, how ingrained is that stuff?

[B]

Well, yeah. I mean, if you think that we have inherited something. Yeah. What can we do about it? Are we stuck?

[A]

Or can we change? If we make the right choices, yeah. So what we've got for you this.

[B]

Hour are three stories where choice, individual choice, challenges destiny.

[A]

Right.

[B]

Maybe.

[A]

We hope. I'm Jad Abumrad.

[B]

I'm Robert Krylwich.

[A]

This is Radiolab. Stick around. To get things started, let's just take the question that was just in the air. Are we human beings violent? Forever and forever and forever. Amen. Is that just who we are?

[B]

That's a good question.

[A]

It's a good question. Right. And the people who usually say yes say yes because, in part, because of our ancestors.

[B]

We're like them, they're like us. That's how it goes.

[A]

On the other hand, let me tell you a story.

[B]

I was hoping there would be another ham.

[A]

Yes.

[E]

Do you remember this guy, Robert Sapolsky?

[B]

Oh, yeah, that's Robert Sapolsky.

[A]

We've had him on the show a couple times. He's a neuroscientist. Spends most of the year at Stanford.

[E]

Being a lab rat scientist doing neurobiology in the lab.

[A]

But in the summers, most summers, I.

[E]

Go and spend time in East Africa in the Serengeti, studying wild baboons there.

[A]

Why?

[B]

What is it? What is he working on? What's his reason to.

[A]

Well, Sapolsky is interested in studying stress, the effect that stress has on the body. And turns out baboons are a perfect source of data because they're always under stress. You know, the one thing we know about baboons and have known forever is that they fight baboons constantly, not just.

[E]

Metaphorically, but literally, have been the textbook example of a highly aggressive, male dominated, hierarchical society. Because these animals hunt, because they live in these aggressive troops on the savanna, parentheses, just like we humans used to, and thus we evolved very similar. They have a constant baseline level of aggression which inevitably spills over into their.

[A]

Social lives, which is why he studies them. So what Sapolsky does, basically, is he goes into the bush and he watches.

[E]

Here are field notebooks, and there's a floor of them there and a whole shelf there.

[A]

His office is covered with these field notebooks, each one containing detailed notes of.

[E]

Who groomed who and who's not getting along with who and who's messing around with who they.

[A]

He tells the following story of a particular moment in his baboon watching which completely changed his life, changed how he sees the world. It happened about 30 years ago. Spolsky was a young guy just out of grad school, studying his first troop. My, my first baboons, a troop he really loved.

[E]

These were animals I was very connected with.

[A]

In most ways, he was a pretty average group.

[E]

Yeah, your basic baboon troop. The females were highly affiliated with each other. They had a very stable ranking system. The males, meanwhile, highly aggressive, dumping on.

[A]

Each other, because that's just what males do right here.

[E]

So he thought, okay, mid-80s, big boom in tourism in Kenya. Wonders for the economy. Lots of new lodges, lots of lodge expansions, and there happened to be the next territory over, the tourist lodge.

[A]

And this one particular lodge, he says, had gotten really big, really fast.

[E]

And during that time, the lodge greatly expanded their garbage dump, which means basically.

[A]

That they just dug a hole out behind the lodge and each day a.

[E]

Tractor came out with the leftovers and dumped it there.

[A]

So what we're talking about here, if you can nasally imagine, is a big steaming pile of trash, half eaten food baking in the sun, smell wafting in the breeze for miles and miles and into the nostrils of baboons. So it was not long before a troop of baboons, not Sapolsky's, but one.

[E]

Nearby, discovered the garbage and just started feeding on it. And here they are eating leftover desserts and chicken, whatevers.

[A]

All dump full of food must be to a baboon, like wandering into heaven.

[E]

Manna in the wilderness. So this troop almost immediately shifted their entire behavior. Two, they just slept in the trees above the garbage dump. And instead of getting up at six in the morning to start foraging, they would waddle down around two minutes of nine and the Tractor would show up at nine o' clock and dump the food. And they would have 20 minutes of sheer frenzy. And then they'd go back to sort of being couch potatoes.

[A]

And this is how it went for a while.

[E]

So they're over there living off of garbage. And somehow some of the males in my troop figure this out.

[A]

These males think, we gotta get in on this, we've gotta go over there and take their food.

[E]

What emerged was each morning a bunch of males would run a kilometer or so to the garbage dump and fight their way in to get some of the garbage.

[A]

So every morning there would be a showdown, Basically, yeah.

[E]

And they would come back with canine slashes and stuff like that. And.

[A]

But they'd also have drumsticks, cakes, hamburgers. And this ritual, says Cebulsky, went on for years.

[E]

And then a few years into it, I got word that there were a couple of baboons in this garbage dump troop that looked awful and something was wrong with them.

[A]

Some guys from the lodge had called him and said, hey, you better get down here and look at this. And when he got there, what he.

[E]

Saw was horrible animals with rotting hands, walking on their elbows. I mean, just really bad. So trying to figure out what this is about, get veterinarians involved, and we finally figure out it's tuberculosis.

[A]

Turns out some infected meat had been thrown in the dump and then eaten by the baboons. And this was really bad news because while tuberculosis in people is a really.

[E]

Slow moving disease, TB kills non human primates in weeks. And it's a nightmare of a disease for them.

[A]

In just a short time, the garbage dump troop was completely decimated. Not to mention that the tough guys in Sapolsky's troop, the ones that had gone to the dump every morning, they got it too. Have the same kind of rotting hands.

[E]

And they all die of it.

[A]

That must have been really kind of tragic to witness.

[E]

This was not a good period for me. These were my animals. I had grown up with these guys.

[A]

But, you know, while Sapolsky was heartbroken now that half the alpha males in his troop were dead, he did notice some strange things started to happen. Changes.

[B]

How did it change?

[A]

Well, grooming, spiked grooming.

[B]

So you and I sit on a branch and I take little fleas out of your fur?

[A]

Yes. Well, you know, usually when a female grooms a male, the males never reciprocate. But suddenly they were even weirder.

[E]

You saw adult males sitting in contact with each other and grooming each other.

[A]

Ooh, you know how rare that is. Be like if suddenly, in the middle of round five of a heavyweight bout, Mike Tyson just decided to stop boxing and nuzzle his opponent or comb Evander Holyfield's hair.

[E]

It would be like that if you're a baboonologist. And it would have been less shocking if these guys had wings or were photosynthetic or something. Up to then, I had seen like 30 seconds of male, male grooming in the course of 15 years.

[A]

But at the time Sapolsky kind of wrote it off, this was just some freak event that wasn't gonna last. So he actually stopped studying them even.

[B]

After that big investment of time.

[E]

Scientifically, they were ruined by such a non natural event, removing half the study subjects.

[A]

As a scientist, it became less interesting.

[E]

To, you know, that was the rationale. It was just too painful to go and watch these guys. So I moved to the other end of the reserve, about 40 miles away and started with a new troop there. And for six years I would not go anywhere near this corner of the park because I just didn't want to be there.

[A]

Now, fast forward six years and we come to the moment that really changed things for him, really flipped him into a different way of thinking. And it happened kind of by accident.

[E]

So about six years later, out there for the first time with who was soon destined to become my wife and decided I wanted to kind of show her where I had grown up. What part of the park?

[A]

Ah, you wanted to go to the Old Haunt.

[E]

Yeah, basically. So went there and the troupe was.

[A]

There and they were acting pretty much the same as before. Lots of grooming, not so much fighting.

[E]

And isn't that nice? And there's still like this great remnant.

[A]

Troupe and he's sitting there with his wife, just pointing out all the different baboons. And so there's T Va and there's, I don't know, whoever.

[E]

And then it hits him, this epiphanal, whatever.

[A]

Wait a second.

[E]

There was only one male left who had been there at the time of the TB outbreak.

[A]

Dun, dun, dun.

[B]

I don't follow this. What? One male?

[A]

Stick with me for just one second and you will get it.

[B]

Okay?

[A]

The thing about male baboons, first thing you gotta understand is around puberty, the males get a little antsy, they get.

[E]

Itchy, they're bored, and they just pick up and leave. So in a troop, any of the adult males grew up someplace else, which.

[A]

Meant that these new guys that were coming into Sapolsky's troop were coming in from the outside, from the old world order.

[E]

The jerky real Dog eat dog world out there.

[A]

So you gotta figure these new males are coming in with old expectations that they're gonna have to kick ass to be respected. Which would mean that this whole Kumbaya situation should evaporate the moment these guys show up. But it didn't. It stuck.

[E]

Oh, my God. The new guys are learning. We don't do stuff like that here.

[A]

And if the new guys are learning a new way, well, that means the old way, the violent way, isn't the only way.

[E]

And this. This floored me. It was one of those moments. It will be one of the three or four best science moments of my life. The key question was, how did these guys unlearn their entire childhood culture of aggression, blah, blah, and somehow learn we don't do stuff like that around here?

[B]

Well.

[A]

Well, what?

[B]

Well, how do they unlearn something that was supposedly built in?

[A]

Well, he doesn't really know exactly. Oh, but, but, but, but. Here's Sapolsky's hunch. Here's his hunch. And this is really cool. It may have to do with that precarious moment when the new guy comes in. Now, normally what happens in this sort of status quo is that the new guy arrives and it's just a really bad experience for him.

[E]

It's awful. I mean, you look at them and you just identify with, like, freshman year at college or something. They're completely peripheral. Every male who's higher ranking dumps on them.

[A]

And even worse, this freshman baboon is completely ignored by the ladies.

[E]

And you just sit there and say, somebody groom him. My God, I went till sophomore year until somebody groom him. Come on.

[B]

Why don't they groom him?

[E]

Because if they did, some adult male would have attacked them.

[B]

Oh.

[A]

So the ladies hang back while he's out there biting and clawing and trying to scratch his way in. What you've got here is a cycle that has existed for a long, long time. But if you make one small change, just remove the alpha male, take him out of the equation.

[E]

Suddenly the females are more relaxed and more likely to take a social gamble of reaching out to somebody new. The key thing is the females.

[A]

Polski thinks that it's all about timing. If the females can get to the new guy early enough, everything is different.

[E]

It's remarkable. In your typical troupe, it's three months on the average before the first female grooms you. In this troop, six days.

[A]

Get out. Six days as compared to three months?

[E]

Yeah. And a world in which, from day one, as an adolescent male, you're treated better. Something about the aggressiveness melts away.

[B]

The thing, though, is, Jad, that before we get too carried away, we do have to ask the question just how permanent this change is, as nice as it is. So I explained this whole story that you've just told to a professor at Harvard named Richard Wrangham.

[A]

Yep.

[F]

Professor Wrangham is here.

[B]

He's an evolutionary biologist, studies chimps particularly. So I asked him. Well, okay, you've heard the story about the baboons. What do you think?

[F]

Yeah, no, it's a nice example of the potential for some change. Clearly, we should put boundaries on it. You know, lots of baboons have been studied across Africa, and this sort of example has never been found in a natural context.

[B]

But, I mean, I think, aren't these guys wild baboons that just happened upon a garbage dump?

[F]

Yeah, it's just not a very natural context to have humans provide food that leads to several males dying.

[B]

But that means that I could imagine going on a helicopter all over Africa, shooting all the alpha males, and then giving all the ladies a chance to create a different baboon culture. And what I guess I'm wondering is, do you think in an absurd situation like that, that the baboonery might change its essential nature?

[F]

I don't think it'll change its essential nature. I can see that there can be a cultural influence that may last a little bit of time, but the larger influence clearly is the set of genes that produce a particular kind of brain. A baboon is basically a baboon until you get some kind of genetic change. And that is something that Sapolsky has not seen there.

[B]

So Professor Wrangham wants a genetic change to make sure that this is really real, permanent.

[A]

Yeah. But here's the thing. I don't know if this constitutes a genetic change, but it has been 20 years.

[B]

Really?

[A]

Yes, 20 years. And Sapolsky's original baboon troop is still operating in this peaceful mode, even though dozens of new males have come and gone at this point. And the idea that something that was thought to be so unchangeable could change and change quickly and then stay changed as a result of something so airy and undefinable as culture, well, that has caused Robert Sapolsky, Dare I say it, to hope.

[E]

Absolutely. And it's not something that I do by. By nature.

[A]

You're not a hopeful guy by nature. No, not at all. In fact, this story got him so hopeful, he decided to send it to Foreign affairs magazine, which is a magazine read by a lot of politicians yeah.

[E]

And they went for it.

[A]

And so we had to ask him after it was published, did anyone write you back?

[E]

No, basically not. I basically heard nothing from anyone.

[B]

Nothing from anyone?

[E]

Yes. Big yawning silence. I'm sure George Bush and Cheney read it each evening and tremble at its implications. But no, basically, as far as I can tell, it was a huge waste of time for me to write it.

[A]

Well, we read it.

[E]

Yeah, thanks. My mother didn't even.

[A]

Radiolab will continue in a moment. Message one. Hello, this is Richard Wrangham.

[F]

Radiolab is funded in part by the Alfred P. Sloan foundation, the Corporation for.

[A]

Public Broadcasting and the National Science Foundation.

[G]

Hi, this is John Horgan. Radiolab is produced by WNYC and distributed.

[A]

By National Public Radio. Hey, I'm Jad Abumrad.

[B]

And I'm Robert Krolwit.

[A]

This is Radiolab.

[B]

Our topic today, choice and human destiny.

[A]

Yeah, the way we are.

[B]

Is that the way we're gonna stay?

[A]

Ah, very nicely put.

[B]

Yes. In the last section we were talking about baboons and their propensity to serious change, which is a maybe or a maybe. We don't really know.

[A]

Yeah, we'll know in a thousand years.

[B]

But let's switch our ape. We'll go to Oregonians, which is a rare subsect of human beings, to set it up.

[A]

We were thinking a lot about small groups on this show, you know, because that's what we are. We are small group primates. That's the phrase that sometimes used to describe us humans. And it's a phrase that can carry some negative connotations, as in we evolved. In these small groups, we are predisposed to be small minded. No, small is not always a bad thing. I'm gonna tell you a story now. This is a small group story. It's just as a warning. Contains a moment or two that's a tiny bit graphic, but we hope you'll stick with it because it's a really cool story. Takes place in a small town. Like really small. The kind of town where you can.

[C]

Dial the wrong number and still have a conversation.

[A]

Cause you know everybody. So tell me where we are.

[C]

And beautiful downtown Silverton. Essentially our downtown has not changed since the late forties, early fifties.

[A]

Oh yes it has, but we'll get to that. This is Stu Rasmussen. He is our main character. A little while back, Stu gave myself and producer Aaron Scott a tour.

[C]

Movie theater on the corner, the old hardware store on this corner.

[A]

A tour of his favorite place on earth, Silverton, Oregon, which is about 40 miles from Portland. It's about 40 years from Portland. Actually.

[C]

You know, it's the town I grew up in. And this is my image for what I want Silverton to be. You know, I rode my bicycle down this street and came to the hardware store. We're doing good.

[G]

Vince.

[C]

How are you?

[A]

Does that happen to you a lot? People just honk and wave all the time.

[C]

Oh yeah. It's a small town.

[E]

Everybody knows me.

[A]

If it were up to Stu, this town would never change. It would stay frozen in that quaint Norman Rockwell candy coated image from his boyhood. The weird thing though is that that image in his head would probably never have included a guy like Stu. At least Stu as he is now. And if this is a show about change, here is a story about a pretty radical bit of change where you wouldn't expect to find it. Speaking of which, can you describe where we are and what we're looking at?

[C]

Well, we're standing in front of the Palace Theater on the corner of Oaken Water Street.

[A]

This is one of those Gone with the Wind theaters with the big marquee and the bulb lights and everything.

[C]

Built in 1935 and in continuous operation ever since.

[A]

Stu pulls out some keys and opens it up. But starting to get really cold, he suggested that we do the interview here in the town's only theater. Even smells like a Gilded Age theater. Which at 1pm still smelled like popcorn from the previous night and was filled with nothing but 200 empty red velvet seats.

[C]

It's not what you expect in a small town theater.

[A]

No, this is beautiful.

[B]

Yeah.

[A]

Okay. See you later.

[C]

Okay.

[B]

Thank you.

[A]

We plopped ourselves. What do you think? Best seats in the house. Right in the middle. Let's sit and pretend we're watching the movie of your life.

[C]

Well, there's a dull movie.

[A]

Hardly. So the movie of stu begins in 1975. He's 27 and he's in a theater.

[C]

Just like this seminal moment in my life was when the Rocky Horror Picture show came out.

[A]

Stu is in the projectionist booth cause that's his job. He's changing the reels. And at some point during one of the musical numbers, he glances at the.

[C]

Screen and it was like, oh, what was the O? Here was this movie with a guy in drag on screen. He's a sweet transvestite in transsexual Transylvania. Those are words that I've never heard. I watched that again and again.

[A]

Fast forward 10 years. Stu now owns the theater just like his dad had before him. He's an upstanding member of the town he's on the Silverton City Council, then on the library board. And then he starts to transform. And everyone will tell you it began with the nails.

[C]

I think I probably started having my nails done in 94 or 95 and started out with very masculine nails without polish and square ends, and then slowly grew them out. And then I went into what I considered a masculine nail color of blue.

[A]

And then he says he gradually started to paint them red. Then he put acrylic tips, which got longer and longer.

[C]

This was the first test of the community.

[A]

Hello, Laurie. Good evening, sir.

[C]

How are you?

[B]

How are you?

[C]

Because I would be at the theater taking tickets.

[A]

Can I have two tickets? You'd be dressed as usual, in a sense, plaid shirt and jeans.

[C]

And his hand would come out for their ticket.

[B]

And what in the hell are those?

[C]

You can't miss it.

[B]

And, you know, he had long fingernails.

[A]

That's Dennis Bean, longtime Silvertonian. One time when I had to give him my ticket. That's Megan DeSalvo. She's 17. And he ripped it and, like, his nails, like, went down the palm of my hand and just gave me the chills.

[C]

Yeah, I think probably his nails were the first thing most people. People noticed.

[A]

Kyle Palmer, veterinarian and city councilman, born.

[C]

And raised here in Silverton.

[A]

Was there talk? Was it. I mean, were people sitting?

[C]

Oh, definitely talk. But it happened so gradually, which is.

[A]

Something you hear again and again. It happened gradually.

[C]

You know, first it was the nails, and then at some point in time, he changed the focus of the movie theater and was really making a game attempt to get new releases down in the theater.

[A]

Frequently, you know, when there was a theme kind of movie, he would get into costume. My name is Ken Hector, former mayor of Silverton, Oregon. And very often the costume would be female attire. This was step two of Stu's very careful transition. According to everyone we spoke with for years, after the nails, he would, quote, promote that week's movie by dressing up.

[C]

One of the new Star wars movies was out, and it wasn't a coincidence he was dressed as the Queen Amadala.

[A]

Come back.

[C]

I love you, whatever name is from the movie.

[A]

Years ago. Remember some years ago, there was a.

[E]

Movie called My Big Fat Greek Wedding.

[A]

That's John Bach, also a lifelong Silvertonian. That whole day, he wandered around town in a wedding dress, complete with a veil.

[D]

That, of course, got everybody talking.

[A]

Yeah, a lot of people laughed about it.

[D]

And at first, I don't think people put it together with, this is Linda Webb. He's a registered nurse Sexuality, transgender, or any of those things. I think we thought he was just dressing up to go along with his movies.

[C]

There was clearly a. Let's go by the movie theater tonight because we've got to know what Stu's wearing.

[A]

For Stu, this was just the beginning of something. He wasn't just clowning around. When did your gender complexities begin?

[C]

Probably 14 or 15, I think. I was a shy young man and interfacing with girls. My mother was a bit strange on that, in that girls were evil and they would. No girl was good enough for her son, and da da, da, da, da.

[A]

So did you date at all?

[C]

Not until I was out of high school.

[A]

So girls were kind of scary, it sounds like.

[C]

Oh, girls were scary, yeah.

[A]

While everybody else went on dates, he says he would build computers from scratch. And even today, in his basement, you'll find an entire electrical shop. Oh, my God.

[C]

Fun stuff. RF generator, spectrum analyzer, logic analyzer, other logic analyzer.

[A]

In any case, Stu says the best that he can explain himself gender wise is just to say that when he looks in the mirror, he likes himself better when he's dressed as a woman.

[C]

I don't know how to describe it. It's just. I can't understand it. I mean, some people like to dress up and look like a cowboy or lumberjack, whatever. It's your mental image of yourself that you look in the mirror and you like.

[A]

So after the nails, after dozens of episodes of socially acceptable cross dressing, Stu took the next step. He began to perform some experiments. Like, he would go to the lumberyard just to get some stuff, A couple.

[C]

Of pounds of nails or something.

[A]

All the while, he would be wearing a padded bra under his flannel shirt just to see what would happen. So this for you, was like a test? It was like a calculated test to.

[C]

Gauge if it was possible if I could survive with breasts.

[A]

So when he was 52, he drove into Portland, visited a doctor who put him to sleep. And the doctors made two small incisions.

[C]

One under each breast, about an inch and a half or two inches long.

[A]

Then they pulled back the skin on each side, slid in an uninflated balloon.

[C]

And then pumped it up with water until the skin was stretched to the point that it was almost transparent.

[A]

Hmm, that sounds very painful. Was it?

[C]

Well, I was asleep at the time.

[A]

But when he woke up, he was a different man because he now had several pounds of new stuff hanging off his chest. What were you thinking at that moment?

[C]

I was thinking, what have I done? It was like, there's no going back.

[D]

I can remember being in Mac's place downtown at a table, and he was coming across the street with his breasts prominently showing. And it was the first time any of us realized that he had actually had surgery. And one lady was going, look, look. And the other lady was going, don't look, don't look.

[A]

You know, you'd see Stu going across the street and, oh, my God, look at Stu.

[D]

My God, what is he doing?

[C]

It just sort of shocking.

[B]

There was a buzz around town.

[A]

Was it a situation where he'd walk by and then heads would turn, hushed voices would. Would ensue?

[D]

Yes, basically.

[A]

This is Victoria Sage, Stu's longtime girlfriend. They've been together for 36 years.

[D]

So we would be walking in our local Goodwill, and we'd be a few aisles away from each other, and I would hear that used to be Stu Rasmussen. Like he had changed somehow. Stu's just trying to fulfill that body image he's got in his head.

[A]

But he's also gonna, in a way, ask you to adjust his. Your body image of your mate. Has that been difficult?

[B]

Hmm?

[D]

No.

[A]

Okay.

[D]

No. I'm sorry. If you want to get kinky about it, a man with is kind of cool, huh?

[A]

Okay. Did. Was there ever any concern?

[D]

There was for me, not so much for Stu, I think, partly because he didn't hear as many whispers as I felt I did. But I was concerned for the theater business.

[A]

Not without reason. A lot of kids in the town stopped coming to the theater because their parents wouldn't let them. Ticket sales took a hit, and it wasn't long before pickup trucks full of teenage boys would drive by the theater yelling slurs.

[D]

Oh, I don't know that I go so far as well. Yeah, I guess. I guess faggot is a slur. I guess.

[A]

So you get to this point in the sped up movie narrative of Stu, this point right here, where even though he took it so slowly and was so careful, it's still easy to imagine things turning ugly.

[D]

I don't know. What was that movie about the boy that was, you know, drug and beat to death because he was gay in a small town in the Midwest? You know what boys don't.

[B]

Shepard.

[D]

Yeah.

[A]

Might be a little extreme, but according to Linda Webb, Silverton's not so different from Laramie, Wyoming, where Matthew Shepard lived. It's a small town, very traditional, very conservative. You know, you got a lot of rednecks in Silverton. That's how Dennis Bean puts it. So it's not crazy to expect a worse. But here's the surprise and the whole reason we came here to Silverton. The worst didn't not happen. There was no redneck rebellion. In fact, the opposite happened. Something historic. On January 5, 2009, the Town of Silverton elected Stu mayor of the city of Silverton.

[G]

Marion County, Oregon. Congratulations.

[B]

Senator.

[A]

Silverton has elected the nation's first openly transgender mayor. The nation's first openly transgender mayor. Well, change is definitely in the air this election. Take Stu Rasmussen, for example. As openly transgender as he runs his hometown in heels. Speaking of heels, this is in fact the sound of Stu's 4 inch heels pounding on Lenol as he goes to a city council meeting.

[C]

Hello, Harold.

[A]

How are you?

[C]

Couldn't be better. How are you? Good.

[A]

Now, call us, you know, city elitist or whatever, but a mayor in a plunging V neck sweater and a black miniskirt. Not what you would expect in a tiny, conservative Republican town. So we wanted to know, why did this happen here? So producer Aaron Scott and I walked around town for a couple days and we interviewed dozens of of people, including a guy named Ken Hector, who Stu beat out for mayor. He's a conservative Republican, definitely not one of Stu's big fans. It was just a difference in philosophy about. I don't want to sound pretentious, but, you know, as a mayor, I think there's certain expectations about professionalism that you should exhibit. He would come in with a tight clinging top with cleavage down to here. You're almost pointing at your belly button there. Well, a little bit higher. Come on. You know, when you're at the council meeting, show some dignity here and dress in the appropriate attire for the occasion. Ken even tried to get the city council to impose a dress code on Stu. But when we asked him, you know, are you surprised that the town has embraced Stu and even gone so far as to elect a mayor? He said, no, not in this case. You know, Stu's a rarity in that. You know, there's a lot of people in this town who are extremely religious, very conservative people. Word a stranger who came into town suddenly, I'm sure the support and perception might have been different, but you're talking about a native son who grew up here. And he said, look, Stu runs the only theater in town, so he's out there every weekend standing out in front of the Palace Theater taking tickets. So everybody knows him. Not only that, back in the day, he used to be the cable guy. So he's literally been in everybody's home. He's still the guy you call if you have trouble with your computer. So it might sound strange to you, but. But it's really not. And that is when it hit me, actually. Under the right circumstances, a small town can be like, the most progressive place on earth. And it's exactly because everyone's all up in your grill. You are forced to know people. Like, for instance, how long have you known Stu? Oh, my goodness. I grew up with Stu.

[E]

I mean, we.

[A]

I remember when Stu was like an altar boy at the church with my brother. This is Susie Simas, a retired teacher. Yeah. His parents and my parents were friends. Like a lot of folks in Silverton, she has known Stu for so long and in so many different contexts that you can't do that New York thing with him where you see someone on the sidewalk and you size him up instantly and think, eh, freak. No, to her, he's way too complicated for that, you know? To her, he's Stu the altar boy stuff. The computer geek. Yeah, I probably would call him a geek. Stu the city councilman. Stu the mayor. Or it's just Stu.

[D]

Just Stu.

[E]

Just Stu.

[A]

Whatever.

[G]

That's him.

[E]

You know. Go on about your business.

[A]

Now, to be clear, a lot of the people we talk to, in fact, some of the same folks who said, yeah, Stu's just do. Are still not happy about this situation.

[G]

No, I mean, I don't think God's a cross dresser.

[A]

They either felt it was morally wrong, as in the case of this minister, Tom smith, and Genesis 1:27 says, so God created man in his own image, or some folks, like Linda Webb's husband John, just felt like he takes it way too far.

[E]

It's right there. It's in your face. He dresses kind of like a street walker.

[D]

You feel that that's confrontational.

[B]

I do.

[A]

But most of the people who had objections, it was a little more nuanced, and it went something like this. Well, I personally did not vote for.

[E]

Him for mayor because I didn't feel it was a good idea to have someone that looked like that representing us.

[A]

But on the other hand, he is.

[E]

A good man and he's got this town at heart.

[A]

In other words, according to John Bock, the problem really isn't Stu or the town. It's the outside. All those people out there who are going to hear about Stu and then judge them. Which is what makes November 25, 2008, such an interesting day. Stu had just been elected mayor. He'd squeaked it out by about 400 votes, but he hadn't yet been sworn in when a group of Christian Extremists from Kansas showed up in town and started marching up and down Main street yelling at people. And at one point, they even unfurled an American flag, put it on the ground and stepped on it just to show how offensive they found. Steve, it's our duty to come out here and preach to everyone. Man is disgusting.

[G]

These folks hate Stu because they will not by any means warn him about the sin that's taken him to hell.

[A]

So unpleasant.

[C]

And then bringing up signs that say things like, God hates Silverton. God hates your mayor.

[A]

God hates fags.

[G]

Your pastor is a whore.

[A]

It's an abomination for a man to put on a woman's clothes and to be the opposite sex. A few folks from the town decided to start a counter protest.

[G]

We stood across the street from these.

[A]

People, by and large, just a few guys at first. Now, earlier, someone had suggested all the guys ought to dress up as girls and all the girls ought to dress up as guys. Yossi Davidson said his initial reaction was, yeah, right, but there he was in a dress. I admit it. But that really actually was the first time he says that. At first, he and the two or three other guys who had on women's clothing felt a little weird. But then people just started coming.

[C]

It was just amazing.

[B]

Of a couple of hundred people, I mean, men dressed like women, women dressed like men.

[C]

Some of the people that I saw dead there were surprising to me because I had labeled them in my head as conservative.

[G]

And people would drive by, people with.

[C]

Signs, God loves Sultan. God loves Stu, with costumes.

[B]

The town was really alive, and the.

[G]

Crowd just kept getting bigger and bigger.

[A]

What were you thinking at that moment? From what I understand, you were standing off to the side just watching what was going through your mind.

[C]

Yeah, well, honestly, I tried to discourage people from even giving them the time of day, saying, don't give them any attention. I couldn't get that to happen. They were so angry. They came out 200 people, men in dresses, grandmothers, babies. It's just amazing. That was the town that wasn't me. Sorry, I get a little emotional.

[A]

That must have been a turning point for you.

[C]

The biggest one, you know.

[A]

Before we go to break, just want to give props to Aaron Scott, who did a huge chunk of the reporting for that piece and co produced it with me.

[B]

We'll be right back.

[A]

Hi, this is Issa St. Clair calling from Philadelphia to read the credits. Radiolab is supported in part by the National Science foundation and by the Alfred P. Sloan Foundation. Enhancing public understanding of. Of science and technology in the modern world. More information about [e-mail]. thanks, guys.

[B]

Are we about to do thoughts this right now?

[A]

Yes, we are.

[B]

Okay.

[A]

Three, two, one. Hey, I'm Jad Abumrad.

[B]

I'm Robert Krulwich.

[A]

This is Radiolab. And today we're talking about change, really, or what looks like change.

[B]

So you remember back to the baboons, when we started this program?

[A]

Yeah.

[B]

The question we were asking then was, will those baboons, if they do enough generations, will they create a new culture?

[A]

Yeah. Will it stick?

[B]

Will it stick?

[A]

Let's hope.

[B]

Let's hope. But we don't know. And the town that chooses a mayor, is that town expanding the sense of possibility or is this just a little blip? Let's hope. Yeah, exactly. But now let's get really serious. There are indeed changes that do stick, and we're going to examine a rather startling example of it right now. Yeah, but to do that, we need an evolutionary biologist, and we found one at Duke University.

[G]

You guys talk to each other now?

[H]

Yeah. Hello?

[A]

Hello. Who's this?

[B]

That's Brian Hare.

[H]

That's fantastic.

[B]

And the first thing Brian Hare did was tell me about another guy, Dmitry Belyav, named Dmitry Belyaev.

[H]

And Dmitry Belyaev was a very famous geneticist in Russia. He was alive during World War II and doing genetics work.

[B]

But after World War II, he was in a little spot of trouble.

[A]

Why? What'd he do?

[B]

Well, because he was a real Darwinian. He believed in evolution and genetics.

[H]

But thinking about evolution like a Darwinian evolutionist does, that was not popular in Stalin's Russia.

[B]

Is popular the word, or was that a death sentence?

[H]

It was a death sentence. So the writing was on the wall. And he knew that he should probably take the Trans Siberian Railroad from Moscow. Quickly, quickly. And he went to Novosibirsk. And the way that Dmitri Belev decided to hide his continued interest in studying Darwinian evolution was he would begin a fox farm where he would make fur coats.

[B]

So what is Mr. Bialev actually doing?

[H]

What Dr. Belyaev was actually interested in was to understand how does domestication happen?

[A]

That's his question. That's a dumb question.

[B]

No, it's not a dumb question at.

[A]

All because, well, you just bring the.

[B]

No, think about a wild animal. It is impulsive, it is aggressive, it growls.

[A]

What is that, a wolf you're playing there?

[B]

That's a wolf that I've got there in the background. Now, this is a domesticated version.

[A]

Good boy. Good boy. Come here, doggy.

[B]

The nature of the animal has completely changed here. And if you want to learn something about the nature of a creature, how.

[H]

It can change, domesticated animals are a wonderful place to start. So Belyaev, he decided, why don't I just experimentally domesticate some animals? And his cover was that he was going to make better fur coats.

[A]

When was this, by the way?

[H]

1959.

[B]

Okay. So Sputnik was up, Russians were feeling good, and he was making fur coats, so to speak.

[H]

So to speak, began one of the most exciting experiments in biology.

[B]

So here's what Dmitri Belyaev does. He goes to a bunch of fox farmers, and he says, okay, I want to buy a bunch of fox foxes.

[H]

And he says, well, all I gotta do is take this group of foxes and break them into two groups. And one group, I'm not gonna change them in any way.

[E]

Okay?

[H]

So it's like a control line.

[A]

So one group is just normal foxes.

[B]

Normal.

[H]

But the other line, I'm gonna decide who is going to be allowed to breed and who is, unfortunately going to be a fur coat.

[B]

So some of the foxes get to have puppy foxes of their own, and some foxes become fur.

[H]

So what he did, and the test was marvelously simple.

[B]

He would go, or one of his.

[H]

Assistants would approach a cage where the fox was kept. A baby fox, sort of a juvenile fox. The experimenter would stand, say, a foot away and would just try to touch the fox.

[B]

Hi, little fox. Come on. Hi, little fox.

[A]

Run, fox, run.

[B]

But if the fox would make this.

[H]

Kind of sound and sort of cower in the corner like most foxes would do.

[A]

What is that? What's that sound?

[B]

That is the sound a fox makes when it's frightened.

[A]

Really?

[B]

Yes. Frightened foxhound. Huh?

[A]

So what happens if it makes that sound?

[H]

Well, they did not breed that fox in the next generation.

[B]

Or to put it another way, they kill him.

[H]

That pretty much, yes.

[A]

That's just wrong.

[B]

But now, every so often, like, maybe one out of every 20 foxes, there would be a fox that would not run back. Would not.

[A]

So it wasn't afraid then.

[H]

Then they would choose that fox to breed in the next generation.

[A]

Yay.

[B]

And they did this over and over again, generation after generation. They would breed the nice foxes together, get rid of the bad foxes, breed the next set, get rid of the bad foxes, breed the next set. Next set. Next set. Next set. Next set.

[A]

Yeah, right, right. What happened in the end?

[H]

Well, eventually they had foxes that were attracted to humans.

[B]

Now, Jad, how long do you think it would take to get foxes from being wild, ferocious animals? To being animals who would lick your.

[A]

Face after this kind of.

[B]

Like, how many years?

[A]

Exterminating. Breeding?

[B]

Yes.

[A]

After the breeding technique, I would think, well, a long, long time. I mean, I would think like. Like, how many years are you?

[B]

How many years? How many years?

[A]

Well, it took wolves, like, thousands of years to become dogs. I don't know. I mean, a long time.

[B]

Well, here's the thing. 10 years is the answer.

[A]

What?

[B]

10 years? Shut up. Don't tell me to shut up. I'm telling you it's 10 years.

[A]

10 years.

[B]

But now, here' crazy thing.

[H]

What was exciting and surprising was that these same foxes, they actually show a whole suite of changes that he did not select for on purpose.

[A]

Like, what do you mean?

[B]

Physical changes? These foxes, as they became more gentle, for some unaccountable reason, their ears, instead of pointing straight up, flipped over.

[H]

That's right. It was a big accident that they now have floppy ears, the tails on.

[B]

A fox, which in a wild fox, they're straight now.

[H]

They have curly tails. They have multicolored coats that are no longer just gray.

[B]

The tips of their paws lose color.

[H]

The teeth get smaller, and their bones became very thin.

[A]

Their bones got thinner.

[B]

Yeah.

[H]

Yes. So what happens to the skull and the face is it actually becomes more feminine.

[B]

The whole animal becomes more delicate and more puppy like.

[A]

Wow, that's. I don't know what to make of that.

[B]

And it's not over. This experiment has been going on. It's now been 50 years. 45,000 foxes later.

[A]

45,000.

[B]

And Brian, by the way, who has read about this, said, I gotta see this for myself. So he went to Novosibirsk just to check it out.

[H]

I did. I took the Trans Siberian Railroad, which, you know, two days of looking at green grass, and there's, like, one species of tree, and I think there was a butterfly that was kind of pretty.

[B]

Was it birch trees? You were looking at birch tree, then another birch tree, then another birch tree.

[H]

Then another birch tree.

[B]

Pretty much another birch tree.

[H]

You got it.

[B]

Another birch tree.

[H]

You got it. You got it. You got it. So I show up and they had thousands of foxes, giant buildings that are probably, you know, as long as a football field full of just rows and rows of foxes. And when you see them, they actually wag their tail. They whine like a puppy dog. They're cute and cuddly, and they love people and they don't bite. So it sounds perfect, except for the one thing I forgot to tell you is that when they're yapping and excited to see you, they cannot help but.

[B]

Pee for joy as I do whenever I see you.

[A]

What I don't understand, though, is it makes sense to me that they're getting nicer because they're breeding them to get nicer. But why is all this other stuff happening to their bodies? What's going on?

[B]

Well, you know, this is the unsatisfactory answer to that problem. Nobody really knows why, but.

[G]

Okay, I'm rolling at my end.

[B]

This is Tecumseh Fitch.

[G]

So here's a synchronized sink.

[B]

An evolutionary biologist at the University of St. Andrews in Scotland, and he has a notion.

[G]

My hypothesis for what's going on here, and this is just a hypothesis, here's.

[B]

What he told me. You gotta go back to when a fox is a very, very little, itty bitty thing, an embryo inside its mother's womb.

[G]

Very, very, very early embryo, like 2 months old.

[B]

To become a fox that can survive in the world, this little embryo needs to grow strong teeth.

[A]

Yep.

[B]

It has to grow fur.

[A]

Need the fur.

[B]

It has to have bones. Strong.

[A]

Gotta have the bones.

[B]

Needs to grow glands. Needs to grow hormones.

[A]

Check.

[B]

And all of these things that you need as an adult fox, all of.

[G]

Them come from the same founder population of cells in an embryo.

[D]

Ah.

[B]

Wow. I didn't know that.

[G]

Yeah. Yeah.

[B]

They're called neural crest cells.

[G]

Neural crest cells.

[B]

When the fox grows these cells, they're.

[G]

Doing these epic migrations. These guys are like pioneers that are moving throughout the body and blazing these trails all over the place. Some of them go out into the.

[B]

Skin, some of them go up into the cartilage of the fox's ears.

[G]

Some of them go into the jaw. They form all these different tissues. Teeth, tail, big parts of the nervous.

[B]

System, major parts of the brain and the adrenal glands.

[A]

What's the adrenal gland?

[B]

Well, that's the most important one for our purposes. The adrenal gland pumps out when to be afraid. The adrenal glands say, run away. Run away, Run away.

[A]

That's the thing that makes the fox go. Whatever that sound was.

[B]

It's the one that makes that sound. So when you're breeding fear out of an animal, maybe what you're doing is you're slowing down the migrations of these cells. They don't deliver the fear, and then they don't deliver all the other things that they usually do.

[G]

What you're focusing on, what you, as the experimenter are doing is saying, I want the guys whose adrenal glands don't mature quickly. That might have the function of making the animal More tame. But what you're doing as a byproduct of that is selecting for guys who don't get as many of those cells into their ears and don't get as many of those cells into their skin and don't get as many of those cells into their teeth.

[B]

So if you get some of the cells you need to make your ears firm and straight, but not quite enough, then your ear will go up to a certain point. And since the cells aren't going to complete the deal, the rest of your ear flops over.

[A]

Really?

[B]

Yeah. You haven't completely.

[A]

Is that why dogs have little floppy ears?

[B]

Yeah, because the cells have been slowed down to the point where they don't finish the job.

[A]

Oh, they are literally arrested.

[H]

Bingo. The argument is that actually when you select against aggression in animals, you're changing the timing and the rate of development such that the experimental foxes are actually frozen as juveniles. They actually never really grow up.

[B]

So then to domesticate a fox, just like to domesticate a wolf into a dog, what you're doing is you're making them permanent puppies. They're, it's a Peter Pan kind of thing. They just.

[A]

Wait, wait, wait, wait. So if we wanted to apply this to, to us and we wanted to say breed a gentler, sleeker human being.

[B]

Yeah.

[A]

We should just kill the football players, Is that the idea?

[B]

What do you mean, kill the football? You don't have something against football players?

[A]

No, actually I like football, but I mean the, like with the foxes, you, you just eliminate the meanies.

[B]

Oh, the mean, yes.

[A]

Would the same thing happen to us?

[B]

That's where it gets really interesting. Remember the professor we interviewed a few hours back, Richard Wrangham, vividly.

[F]

Well, when we think about humans, obviously we're getting just super speculative.

[B]

But he says if you choose to.

[F]

Go back, if we go back just 30,000, 50,000 years, and you look at.

[B]

The collection of skulls, the early versions of us from way back then, you see some interesting fox like changes.

[F]

Well, if you look at domesticated animals, they have smaller teeth than their wild ancestors. And in humans we've been getting smaller teeth over the last few tens of thousands of years. Just like the foxes, we've been getting more gracile bones. That means to say that for a particular length of limb bone, it becomes a little bit narrower, just like the fox. So it is tempting to think that the same kind of process has been going on in humans as has been going on in domesticated animals, which is that there has been natural selection in favor of a Kinder, gentler human.

[B]

Wait a second though. Who's doing the selecting? In the case of the foxes, Mr. Byalif shot you if you were too aggressive. Who's selecting the. Who's domesticating the humans?

[F]

Well, one idea that has been specifically suggested is that it was the growing tendency for our hunter gatherer ancestors to settle down in stable camps.

[A]

You mean like summer camps? Like sing songs around the fire?

[B]

I'm talking about communities. Look, if you are in a very small family group, well, then it pays to be big and strong and mean. Because if you're the biggest guy and you meet a smaller guy and he's got some potatoes, you grab him, eat his potatoes, beat him up, and then move on to the next hill, you never have to see him again. But let's say that as time passes, human society grows a little bit. You form camps, you might have 30 or 40 people. That way you can build bigger fires and you can catch more bunnies and you can defend against enemies. But in this world, if you beat everybody up, you may not survive that.

[G]

When pitted against anybody else one on one, the big, strong, mean guy is generally gonna win. When big, strong, mean doesn't win, and we see this in some primates, is when you can start to form coalitions, when you can start to have multiple.

[A]

Individuals who say, hey, mean guy, stop it.

[G]

Yeah, you're bigger than any one of us, but you can't take on both of us or all three of us.

[B]

Or our whole group.

[F]

Now we've got other males in the community who aren't going to go away. And they say, okay, we've got to deal with this guy. And maybe they deal with him by shouting him down, ostracizing him, or even capital punishment.

[B]

And Richard Wrangham's theory is that if that happens enough times to enough bullies who then can't have kids and spread their genes because they have the unfortunate condition of being dead, then we've essentially.

[F]

Bred out the more aggressive genes or.

[B]

We have domesticated ourselves.

[G]

We're really talking about groups versus individual individuals here. And so in a sense, I think we're really talking about the beginning of society and a kind of rule of law in the way that we think of it today.

[B]

And this pressure to be a little more gentle and to be a little bit more cooperative, this hasn't gone away.

[G]

I think if anything, we're being selected to work together more, to be able to tolerate being packed in even tighter. If you put 20 chimps on a jet plane and tried to send them across the Atlantic. Let me tell you that only one or two would walk off that plane alive. We do this all the time. We take it for granted as human beings, that big groups of people can get along with one.

[F]

I do think that it's reasonable to imagine that humans have a future of increasing self domestication.

[B]

What I sense you proposing is that as the earth gets more crowded, all the creatures on earth, at least sentient creatures, have to start learning to live with each other a little more because they keep bumping into each other. The winners will be the domesticated ones. Everyone will get more empathetic to each other because that's the only way you survive. And we get gentler and gentler and gentler till lambs literally lie down with lions.

[F]

You said it beautifully.

[B]

But do you, do you believe it?

[F]

Well, we may have to go through one or two ups and downs before we get there. And of course there's something slightly alarming about the fact that one possible mechanism by which domestication has happened in humans is through literally execution of the more aggressive types. But in the long term, sure, let's hope that all of us become more.

[A]

Floppy eared.

[F]

More floppy eared?

[A]

Exactly.

[F]

Little white patches on the ends of our tails.

[B]

Remember when we started working together and how mean I was?

[A]

You have. Oh my God. We've domesticated you.

[B]

Yes, you have. Domestic.

[A]

I've noticed your ears have been looking a little different recently. Show me your teeth.

[G]

Smile.

[A]

Anyhow, we should go to break or not break. We should just go to the big break, which is the break that exists between us and everything else.

[B]

Yes, let's listen to the way we end it all. Bye.

[A]

Hi, this is Emma Jacobs, outgoing Radiolab intern. Radiolab is produced by Jad Ab Umrad. Our staff includes Soren Wheeler, Michael Raphael, Ellen Horn and Lulu Miller, with help from Adina Ryan, Emma Jacobs and Elsa Chang. Special thanks to Bill Hare and Brian.

[B]

Hare's father, to Aaron Scott, Anne Hepperman, Dr. Anna Kukova, Dr. Arena Plaina and Chris Lehman.