
In this short, a family dog disappears into the woods...and the mystery of what happened to him raises a big question about what it means to be wild.
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Wait, you're listening.
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Okay. All right.
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Okay. All right.
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You're listening to Radiolab, Radio Lab Sharks.
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From WNYC.
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And npr.
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Hey, I'm Jad Abumrad.
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I'm Robert Krilwich.
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This is Radiolab, the podcast. Today on the podcast, we are going to revisit something that we explored once upon a time in a show called New Normal.
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Talk to each other now.
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Yeah.
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Hello.
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Hello. Who's this? In that show, we talked with a fellow named Brian Hare, who's an evolutionary biologist.
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Yeah, that was. That's him.
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And he told us the story of a guy whose name was Dmitry Belyaev.
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Dmitry Belyaev was a very famous geneticist in Russia. He was alive during World War II.
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He was pursued by Stalin, had a very interesting life, ended up in Siberia, where he began one of the most.
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Exciting experiments in biology.
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What he did is he took a bunch of wild foxes in Siberia and he kind of weeded out the aggressive ones.
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You mean he killed them?
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Shot them, yes.
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And he did this for generations. Anytime a fox was aggressive to people, he would kill it, unfortunately, and then he would keep the other ones.
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And in a relatively few generations, I think it was 10 or so. Yeah, 10, he was able to create a kinder and gentler fox.
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They had foxes that were attracted to.
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Humans, which you would kind of expect.
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But the thing that really got us fascinated by the fox experiment was as these animals behaved, behavior changed, their bodies change, too.
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Here's that part of the show.
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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.
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Like, what do you mean?
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Physical changes? These foxes, as they became more gentle, for some unaccountable reason, their ears, instead of pointing straight up, flipped over.
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That's right. It was a big accident that they now have floppy ears.
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The tails on a fox, which in a wild fox, they're straight now.
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They have curly tails. They have multicolored coats that are no longer just gray.
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The tips of their paws lose color.
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The teeth get smaller, and their bones became very thin.
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Their bones got thinner.
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Yeah.
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Yes. So what happens to the skull and the face is it actually becomes more feminine.
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The whole animal becomes more delicate and more puppy like.
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Wow.
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This was really a surprise to us because, I mean, when you domesticate a dog, you do expect it to become nicer to people. What you don't expect is all this other stuff that it becomes essentially a completely different animal.
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Well, completely. Certainly differently shaped animal.
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Well, that's the question, really. How different Is it.
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Once you've become domesticated and own a household pet, is there anything in you, anything inside? It's still just a little bit wild?
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Turns out our producer at the time, Lulu Miller, had been thinking about this, okay, and she wrote an essay which.
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Is not our usual style, but this is kind of fine.
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Yeah. And it takes that question, you know, what's left? What's wild that's left? And it brings it much closer to home. Okay, so here's Lulu.
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On most of his birthdays, Maureen would give Charlie a sweater. Maureen was my dad's co worker. Charlie was my dog. He was a little white terrier, a very active little guy, always snuffling around at something, barking, growling if you took his spot on the couch. But when we'd zip him into that year's sweater, he'd go completely still and he'd get that same stillness when my sisters and I would sit in a circle around him and color on his white fur with magic markers. I used to think he was still like that because he was happy, content to be our little dog. But now, I don't know. Wildness glimmered up in him, though. From time to time he'd chase after vacuum cleaners, growl at bongo drums and suspiciously eye the dishwasher. But he was quiet, mostly stoic. A good listener, my dad's only friend through long stretches. My dad's a guy prone to the nostalgic and swoops of sadness. And I'd stumble in on him on early mornings in tender conversation with Charlie, testing ideas out on him. What do you think, big guy? He'd say. What do you think? I imagined he was very lonely. Charlie, that is, lost in a purgatory where he didn't belong. Okay, congratulations. You've made it this far in someone else's pet story. I promise things are about to change because it's shortly after his 13th birthday. Maureen, I think, got him a little blue jean jacket with a sheepskin inside and Levi buttons. That Charlie got eaten by a pack of wild coyotes. Let me back up just a step or two. This all happened on Cape Cod, the easternmost tail of Massachusetts, where you can find beachgoers in the summer. Kennedys, I think, if you know where to look. And very few predators. A couple hawks, the occasional fox. But other than that, as the local fauna goes, it's pretty much snow white land. Chipmunks, bunnies, skunks. Until the coyotes came. I was about 15 when we first started hearing about them. And for us East Coasters, it made no sense. Coyotes were symbols of the west. Somewhere far, far away from Massachusetts. Somewhere where the land was orange and wide and open. So I looked into it and it turns out that for a long time it was that way. Coyotes, like big states and cheerful personalities, was a strictly western thing. But in the 1920s, people started spotting coyotes in New York. And by the late 50s they'd made it up to Massachusetts. Only they couldn't quite get out to Cape Cod. See, Cape Cod is literally cut off from the rest of Massachusetts by a canal that's almost two football fields wide. So for decades the coyotes were kept on the mainland. Until one night, sometime in the late 70s, a pack of coyotes decided to do what the rest of us do. They gathered up their kids together for a road trip and crossed the bridge, or possibly some speculate swam across the canal. But I think it's a far better image to picture them as silhouettes walking in single file across the bridge with a big white moon behind them. So suddenly they were there. And they started multiplying. More and more sightings of them in backyards and on runners routes. The local press started running articles. Keep your pets in after dark. A cave was found, local lore has it, with hundreds of collars. In 1998, a three year old boy was bitten. And then my sister found a goose completely slaughtered down on a dock by the pond. It was surrounded by a splatter painting of feces strewn so wide she deemed it the of terror. Now it turns out my family came to Cape Cod right around the same time as the coyotes. In the late 70s, my parents bought a cabin in the woods that overlooked a purple marsh. The cabin had a deck and that's where we spent most of our time. We'd sit out there late into the night watching birds, then stars. And that's where Charlie was the happiest. On the deck. He'd pace around occasionally, nails scraping the wood. But mostly he'd just flop down with a sigh, a literal human sigh, and gaze out along with us. We never needed a fence because he simply never left. When the coyotes first showed up, I used to like hearing them. You'd hear it as you lay awake in bed. The howls, sometimes far off, sometimes right up close. It felt thrilling to know that things were happening. Life cycles and grisly nature, predators, prey right outside the walls. It used to make me feel like part of the earth. So here's how it happened from my perspective. It's late August. Sun is setting. We pull into the driveway, but we don't see Charlie on the deck. Immediately, I knew something was wrong. My dad said, no way. Everything's fine. But then we heard a whimper off in the woods. My mom and sisters and I jumped into action. We called for him, shown flashlights. Charlie. But the woods had gone quiet. And I remember this part very clearly. We were all standing out on the deck, craning our necks, listening for something. And just as my dad was forming the words, look, there's nothing to worry about. He'll turn up in the morning. We heard the yelp. So Charlie. That same noise he'd make when you stepped on his tail, followed immediately by the howls. I ran into a closet to hide from the sound. The next morning, there was nothing. Not a shred, not a collar, not a bone, not a piece of hair. They say one way the coyotes do it, especially with other dogs, is that a lone coyote comes up to the dog and starts playing with it. Eventually, they go off together, and after just a few paces, the pack descends. Or a slight variation, a coyote pretends to be hurt. It whimpers and cries and calls out for help. I can only imagine Charlie in that moment. There he is, standing face to face with his past self at long last. I imagine his head looked up a bit, his chest swelled, his ears perked up, and he stepped off the deck. It's right around then that we would have come home. He would have heard us roll into the driveway, seen our flashlights, heard our calls, and for once, ignored us. I wonder how fast it happened. I wonder if he even knew. I imagine he did. I imagine he saw the eyes suddenly, all at once, realizing he was surrounded and thought, I've been had. Well played, my brothers, well played. And I like to imagine a nod of respect on their part before they descended. The morning after it happened, we were empty. My dad couldn't look up. He kept rearranging chairs around the kitchen table as if some new arrangement would obscure the empty spot on the floor. And for so long, that's how we experienced it. It was about us, the family member we lacked. And then one day, years later, it dawned on my sister that for all the sadness we felt, that last moment for Charlie was probably glory. For that one moment, he was wild. He went out like a wild dog. We were all standing out on the deck when she said it. And my mom smiled and said, yeah, that's a nice thought. But then she turned to us. You know, who's to say they got him? Who's to say he didn't off and join the pack?
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Well, first of all that was a really sad scene story.
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Yeah, that's Brian Hare, our Fox guy from the New Normal show. Not too long after Lulu wrote the Charlie piece, she and our producer Soren.
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Wheeler called him up anyway just to.
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See what he thought of the story.
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Well, let me, Let me, Let me. For. Can I. Can I put on my totally non emotive scientist hat for the moment?
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Yeah, sure.
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Without you being too upset with me. So let me ask you some skeptical questions.
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Okay.
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Have you heard of Mark Beckoff?
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Mm. Mm.
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He is the coyote expert.
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Okay.
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When he's tried to look for evidence that coyotes are doing all these horrible things to dogs. I'm just telling you what the guy argues that he can't. He can't find any good evidence that, you know, it's. It's coyotes that are to blame.
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Huh.
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You mean, like, there's just no evidence that coyotes are even doing this?
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Yeah, because first of all, coyotes aren't generally pack animals. Um, they're generally solitary. And. And so now what does travel impacts is feral dogs. You know, but what's odd is that a feral dog wouldn't eat your terrier. So I. I'm just. I'm flummoxed. I just don't know. I'm not a coyote expert.
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Okay, so are you. Are you saying, like, maybe.
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Let me just ask you one more question just to be sure. So this is horrible, but Charlie was actually taken away.
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Yeah, I mean, we didn't. I mean, we never found. There was no collar, no bone, no scrap of hair.
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How sure are you that it was multiple individuals? I mean, did you see tracks or footprints or.
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No, it was all just on the here. On the sonic level, it was like at least one, but in my memory, it's like five howls, these, like just crazy witch, like, yapping and.
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Okay, all right, so. So what that could be is. It could be coyote pups. Um, do you know what time of year it was?
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It was summer. It was August.
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So if they were, you know, if they were whelped in the spring and. And by then they would have been five, six months old. So that makes sense.
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And. And what would that mean? Like, would the pups have done the killing or one.
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No, no, I think Mom. Mom would have done killing. They were. She somehow signaled to them, and then they came and fed together.
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Wow.
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So can I. So this is Soren. The conversation didn't end here because actually Lulu and I started to ask Brian, like, forgetting what killed Charlie or what happened to Charlie, you know, is it even possible? Like, Scientifically, can a dog, a domestic dog, somehow go back to being wild?
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Kind of like the fox experiment, but the other way? Yeah.
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And that's when he told us about this particular kind of dog.
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New guinea singing dogs.
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New guinea singing dogs, exactly.
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I even have a cool recording of one of their singing songs things. And they're basically short legged dingoes and they live in New Guinea.
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According to Brian, they. They used to be just regular old domestic dogs, but a long, long time ago they left humans, somehow started out on their own, and now we have.
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This very strange animal, which is a bit puzzling. It's like a dog, but not.
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But not quite.
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One hypothesis is that actually they really have evolved such that they're basically now completely wild. They've reverted back to being afraid of people.
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Like what we saw in the foxes in reverse, where aggressiveness or fear comes back.
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Yeah.
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So they avoid people kind of like a wolf, but physically, Brian says they look basically like a dog.
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So that would be, you know, they have the splotchy coat colors and they have a smaller brain, thinner skeleton, all that kind of stuff.
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Floppy ears.
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They actually don't have floppy ears, interestingly enough. That's one difference.
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There have actually been people who have said that they have slightly longer teeth than most dogs and slightly larger heads, which is also kind of more wolf, like. So there seems to be a couple things that are a little bit more like wolf, but a lot of things that are still like dog.
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I mean, it's all over the place.
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It's almost like they're in between.
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Yeah, I mean, I can imagine.
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And oddly enough, Brian says that you can actually kind of hear that typically.
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At night, you know, they will start to chorus, as it's called, and they'll howl. And so they'll all howl together. But it's not a wolf howl because a wolf howl is actually very low pitched, whereas the singing dogs are more high pitched.
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Huh. Wow.
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And it's basically, you know, what would it sound like if a really small dog was trying to howl like a wolf? They're tryhard wolves.
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Like how far these dogs are they? Are they like ballpark three generations that they've been living in the wild? Are they just one, like kicked out the back door? Are they?
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Yeah, like, how long did it take for them to get like that?
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The last estimate I saw was 5000 years.
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Oh, 5000 years. So they've been away from humans for 5000 years.
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It's an estimate.
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If they're 5000 years away from humans, I feel like what I'm learning from you about the potential to become wild again is there's there, at least for Charlie, as as much as I may like to imagine that moment was wild, there's no hope.
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Yeah, unfortunately, I think that's what I think. Unfortunately, that's the. That is the case.
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Yeah. But that doesn't mean that he didn't have the, you know, the desire to be wild.
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Yeah, I mean, I can imagine that a little guy who'd been dressed up, he might have liked it. And especially a terrier. Come on. He's like, bring it on, bring it on, coyotes. Come on, let's go. You know, maybe he was surprised it didn't, you know, and it was good to have that sort of one shiny moment.
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Thank you to Lulu Miller and our producer Soren Wheeler and to Brian Hare at Duke University.
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Yeah.
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And I think that's.
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That's pretty much it.
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That's what we have to say this time.
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I'm Jad Abumrad.
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I'm Robert Krulwich.
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Thanks for listening.
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This is Ann Anderson, a Radio Lab listener from Richland, Michigan. Radiolab is supported in part by the Alfred P. Sloan foundation, enhancing public understanding of science and technology in the modern world. More information about Sloan@www.sloan.org. have a great day. Bye. End of message.
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Hosts: Jad Abumrad, Robert Krulwich
Guests: Brian Hare (evolutionary biologist, Duke University), Lulu Miller, Soren Wheeler
"Dogs Gone Wild" explores the question: What is left of the wild within domesticated dogs? The show revisits legendary experiments with Russian foxes, examines a personal story of a lost pet, and probes the science behind what it means for an animal to remain, or revert to, its wild instincts. Through the blend of science, story, and reflective questioning Radiolab is known for, the episode asks if domestication is ever complete and what the latent wildness in our pets might look like.
"As these animals' behavior changed, their bodies changed too."
— Robert Krulwich (01:23)
"For that one moment, he was wild. He went out like a wild dog."
— Lulu Miller (11:44)
Brian Hare challenges the coyote explanation:
"I'm just—I'm flummoxed. I'm not a coyote expert..."
— Brian Hare (12:59)
"It's almost like they're in between."
— Soren Wheeler (15:52)
"The last estimate I saw was 5000 years."
— Brian Hare (16:51)
On the Fox Domestication Experiment:
"What happens to the skull and the face is it actually becomes more feminine. The whole animal becomes more delicate and more puppy-like."
— Brian Hare (02:17–02:23)
On Loss and Wildness:
"For that one moment, he was wild. He went out like a wild dog."
— Lulu Miller (11:44)
On Coyotes' Role in Pet Deaths:
"He can't find any good evidence that, you know, it's coyotes that are to blame."
— Brian Hare (12:24)
On Reverse Domestication & Wild Dogs:
"It's almost like they're in between."
— Soren Wheeler (15:52)
Humorous Reflection:
"They're tryhard wolves."
— Brian Hare (16:25)