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Radiolab

Bonus: Wild Animal Dads from Terrestrials

18 Jun 2026

Transcription

Transcript generated automatically by AI and may contain errors.

Chapter 1: What unique insights do animal dads provide about fatherhood?

2.461 - 25.896 Lulu Miller

Hey friends, Lulu here. I have been working in public radio for over 20 years. I feel so lucky to get to do this job. And this is a moment unlike any other. Nearly a year ago, Congress eliminated our federal funding and so many of you stepped up to support Radiolab at that time. Thank you. Thank you from the bottom of our hearts. Thank you. But the truth is we just aren't out of the woods yet.

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26.276 - 48.781 Lulu Miller

There's no sign of federal funding coming back. And New York Public Radio, our home station, is currently facing an ongoing shortfall of nearly $3 million. And so I'm coming to you to ask for support. If you are one of those listeners who has never given, we see you. We make this for you. We don't want you to have to support it. But again, this is a moment that is really different.

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49.402 - 70.387 Lulu Miller

If you appreciate our weekly dollop of wonder, of stories that we hope make you see the world anew, that give you some dinner party fodder, or just some quiet escape, please consider supporting us by joining The Lab. And in return, we will ship you a fan-favorite t-shirt with the design of a Pro Tools session on the front, you know, with little sound waves kind of layered on top.

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70.707 - 94.438 Lulu Miller

It is peak sound nerd, but the audio ain't peakin'. A little sound joke for you there. Anyway, for real, I am so proud that Radio Lab is a show on public radio. We are not beholden to any institution. We can report on anyone from Facebook to the government to, you know, the secret underwater sex lives of aquatic animals that they don't necessarily want us to know about. We go there.

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94.979 - 119.984 Lulu Miller

We are beholden to no one but you. So we're asking you, be the public in public radio, join the lab for the t-shirt, the other perks like bonus content and sponsor-free episodes, or just do it to keep the show going. To join the lab and see the t-shirt and check everything out, just go to radiolab.org slash join, or you just text the word lab to the number 83763 to make your donation.

120.064 - 139.109 Lulu Miller

Thank you so much, and on with the show. Hey, friends, Lulu here. And with Father's Day coming up this weekend, I just wanted to drop a special little meditation on dads in the animal world.

Chapter 2: How do owl monkey dads care for their young?

139.509 - 160.478 Lulu Miller

This is an episode that we are dropping for terrestrials, and I thought some of you might enjoy it because I think it expands our understanding of what fatherhood can look like. And rest assured, tomorrow... is your regularly scheduled Radiolab drop. So enjoy that and enjoy this dead venture. Okay, here we go.

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160.498 - 166.285 Maurice Shema

Wait, you're listening.

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166.305 - 176.496 Alan Gofinski

Okay. All right. Okay. All right. You're listening to Radiolab. Radio from WNYC.

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179.783 - 183.228 Lulu Miller

Three, two, one. Imagine.

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183.409 - 186.373 Alan Gofinski

You shrink down to the size of a chihuahua.

187.034 - 188.577 Lulu Miller

And your eyes grow bigger.

188.637 - 189.358 Alan Gofinski

And bigger.

190.019 - 193.604 Lulu Miller

And bigger. Until they take up almost half your head.

193.684 - 196.549 Alan Gofinski

And these eyes give you great night vision.

Chapter 3: What surprising role do seahorse dads play in parenting?

218.394 - 222.198 Lulu Miller

We are not the worst. We are the best.

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222.898 - 224.04 Maurice Shema

Bestrials.

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224.06 - 227.703 Lulu Miller

Bestrials. You got it. Bestials.

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227.724 - 228.164 Maurice Shema

Oh, my.

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228.604 - 243.123 Lulu Miller

Terrestrials is a show where we uncover the strangeness waiting right here on Earth. I'm your host, Sulu Miller, joined, as always, by my song bud. Hoot, hoot. Alan. Who do you think you are? Now, like snowflakes, no two families are exactly the same.

243.383 - 271.227 Lulu Miller

There are families with one parent, families with a mom and a dad, families with two moms like mine, families with two dads, families with a non-binary parent or a grandparent parent. Like snowflakes, the shape and beauty of a family is limitless. But with Father's Day right around the corner, we wanted to spend some time today shining light on daddy.

271.247 - 273.091 Michael Feigelson

Hey, lovely to be here. What's up?

273.111 - 279.382 Lulu Miller

That's right. We are heading off on a dad-venture that will have you swinging high in the trees.

279.863 - 279.923

Ah!

Chapter 4: How do poison dart frog dads ensure their tadpoles' safety?

310.199 - 313.304 Maurice Shema

Mila. She's 11, almost 12. And dad number two.

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313.645 - 321.638 Dr. Eduardo Fernandez Duque

My boys are 33, 30, and 23. Dr. Eduardo. And my last name is Fernandez Duque.

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321.753 - 323.275 Lulu Miller

Someone chimed in. Was that a bird?

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323.615 - 326.178 Dr. Eduardo Fernandez Duque

I am surrounded by birds in my backyard.

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326.198 - 330.022 Lulu Miller

Yeah, there was a gorgeous bird call. And you're right now in Argentina?

330.282 - 330.622 Dr. Eduardo Fernandez Duque

Yes.

330.802 - 339.151 Lulu Miller

Dr. Eduardo is a biological anthropologist and behavioral scientist who has spent decades observing owl monkeys in the forests of South America.

339.311 - 341.974 Dr. Eduardo Fernandez Duque

Let me close the window. That may reduce the bird calls.

341.994 - 371.468 Lulu Miller

Okay, but say hi to the bird or say hola. And our story begins outside that window, way out in the forest, way up high in the canopy, where there is a male owl monkey who is just moments away from becoming a father. Now picture this guy. He's about the size of a chihuahua, white face with huge orange eyes that help him see really well at night. That's why he's called an owl monkey.

Chapter 5: What unconventional parenting method do Darwin frogs use?

418.721 - 441.383 Lulu Miller

Wrong. And if they're not doing that, certain animal dads are famous for, well... Bailey. I'm out. Checking out, leaving the female parent to do all the care and feeding of the baby. You got this, babe. So back to our owl monkey dad sitting right next to the baby in the Argentinian forest. The thing is, up until this moment, no one knew how that dad was going to respond because...

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441.464 - 447.076 Dr. Eduardo Fernandez Duque

No one, no one had ever seen a baby owl monkey being born in the wild.

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447.156 - 453.63 Lulu Miller

But that day, Eduardo's team happened to be there on the forest floor observing.

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453.971 - 479.251 Dr. Eduardo Fernandez Duque

It took about half hour that the baby came out of the mother's womb. And what was fascinating is that the father was also very, very close. Really? And trying to help. I mean, he was touching the umbilical cord. No. You know, this cord that connects the baby. He was possibly trying to help the mama monkey cut it so the baby could be free. That is right there as the baby is born.

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479.271 - 487.348 Lulu Miller

And for the first week, the baby is just nursing, nursing, nursing. like crazy on the mom until... Mom is like, enough.

488.13 - 493.7 Dr. Eduardo Fernandez Duque

I've had it with this suckling. I'm done. I need some space. Yeah. But there comes dad to the rescue.

496.525 - 511.324 Lulu Miller

Here I come, kiddo! The baby literally climbs onto the dad's back and basically does not leave for months. The two of them bounce and swing through the treetops together. Daddy's gonna play with the infant.

Chapter 6: How do burying beetles create a nurturing environment for their young?

511.344 - 514.149 Lulu Miller

Tag, you're it. He grooms the infant.

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514.169 - 515.11 Dr. Eduardo Fernandez Duque

Get those mites out.

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515.13 - 537.822 Lulu Miller

He teaches him how to curl up into a tiny ball way up high in the tree so he looks almost invisible. So he can sleep during the day. Sweet daydreams, little one. And as the baby grows up, dad starts teaching him how to pick out tasty fruits. Which fruits to bite into. Which to avoid. That one tastes gross. How to catch a moth mid-air. Nice job.

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537.882 - 547.115 Lulu Miller

But pretty much this whole time, the baby's little arms are wrapped around the dad's shoulders, meaning this is a three-month-long piggyback ride.

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547.275 - 549.058 Maurice Shema

Or should I call it a monkey back ride?

549.999 - 556.709 Lulu Miller

Now, around four months, the baby climbs off the piggyback ride and starts braving the big leaps up in the branches by itself.

557.349 - 570.3 Dr. Eduardo Fernandez Duque

Unless... Suddenly you get to a gap between branches and you need to take a jump. And so they may give you a little bit of a squeak or a squeal. And that says, okay, hold on a minute. I'm going to put you on my back and take him across the gap.

570.78 - 571.902 Maurice Shema

I got you, little one.

572.022 - 584.617 Dr. Eduardo Fernandez Duque

What is very powerful is the evidence we have that eventually over the years, the infant seems to have a stronger attachment or bond to the father than the mother.

Chapter 7: What parenting behaviors challenge stereotypes in chimpanzee fathers?

670.597 - 684.298 Lulu Miller

And chimp dads, well, at the time Michael was growing up, they were understood to be very aggressive at their worst. And at their best, well, they were just off somewhere else. It seemed like in nature, the dad role...

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684.363 - 686.527 Maurice Shema

It was about hunting and protection.

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686.567 - 704.818 Lulu Miller

And he thought, well, maybe nature was sending him a message that he'd never be good at the softer side of parenting. And then one day, a few years ago, Michael is lamenting about all this, what a dad's natural role truly is when his friend says, wait, wait, wait, you gotta call Dr. Eduardo.

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705.001 - 726.064 Maurice Shema

He studies owl monkeys and I reached out to him and he was like, I'll come over. I'll come over to your house. Let's have a play date, basically. Really? I was like, okay, that's awesome. Come to my house. He felt like that. Yeah. So he came over and we're like... Let's go swimming. And I brought my goggles. He's a really good swimmer, by the way. Okay. Really fast.

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726.084 - 729.268 Maurice Shema

We kept talking about all sorts of different dads.

729.648 - 740.561 Lulu Miller

Chimp dads and their own dads. And at some point, Dr. Eduardo started telling Michael what he had observed with owl monkey dads.

741.202 - 744.306 Maurice Shema

He's talking about a two to three month piggyback ride.

745.18 - 755.76 Lulu Miller

You guys are at your play date. I'm picturing you. You're swimming in the waves. And like, I don't know, Eduardo's like, no, Michael. And then a wave comes. He's like, no, no, no, really.

Chapter 8: How do stickleback fish demonstrate unique nesting behaviors?

755.98 - 764.537 Lulu Miller

Owl monkeys are amazing. Okay, so what from your side, Michael, what did Eduardo tell you that day and how did it hit you?

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764.657 - 772.037 Maurice Shema

Well, First, I was like, that's so cute. And then at the same time, I was kind of upset.

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773.519 - 773.919 Lulu Miller

Why?

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774.38 - 793.26 Maurice Shema

Well, I was like, why am I hearing about this for the first time? And so I was sort of like, who picked which monkey we were going to be compared to? And why did they pick chimpanzees? Because if they had picked the owl monkeys, you know, maybe I would have learned something different.

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793.848 - 804.533 Maurice Shema

So I found myself kind of wanting to dig into sort of what other animals are out there that might do fathering differently.

804.573 - 811.57 Lulu Miller

And he will share what he finds and take us on some of the wildest turns in this dad-venture after this short break.

817.27 - 837.935 Yasmin Basugian

As the day wraps up, get the scoop on what's been happening with Here's the Scoop, a new podcast from NBC News with me, your host, Yasmin Basugian. We'll take a deep dive into the day's top stories with NBC News' trusted journalist. It's a fresh take that's sharp, thoughtful, and it's informative, bringing you closer to the headlines and conversations that are shaping our world.

838.136 - 844.864 Yasmin Basugian

From the front page to the zeitgeist, here's the scoop from NBC News. Listen daily wherever you get your podcasts.

849.552 - 865.62 Lulu Miller

Terrestrials is back. We are talking about the raddest of the daddest with our dad friend, Michael, and he is on a quest to learn all about animal dads who defy the stereotypes and show us all the amazing ways a dad can dad. And to start off, we have... Seahorses!

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