Radiolab - Creation Story

Episode Date: October 10, 2025

Ella al-Shamahi is one part Charles Darwin, one part Indiana Jones. She braves war zones and pirate-infested waters to collect fossils from prehistoric caves, fossils that help us understand the origi...n of our species. Her recent hit BBC / PBS series Human follows her around the globe trying to piece together the unlikely story of how early humans conquered the world.  But Ella’s own origins as an evolutionary biologist are equally unlikely. She sits down with us and tells us a story she has rarely shared publicly, about how she came to believe in evolution, and how much that belief cost her. Special thanks to Misha Euceph and Hamza Syed.EPISODE CREDITS: Reported by - Latif NasserProduced by - Jessica Yung and Pat Walterswith help from - Sarah QariFact-checking by - Diane Kellyand Edited by  - Pat Walters EPISODE CITATIONS:Videos - “Human” (https://www.bbcearth.com/shows/human), Ella’s show on the BBC and PBSSignup for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)!Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today.Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing radiolab@wnyc.org.Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.

Transcript
Discussion (0)
Starting point is 00:00:00 Wait, you're listening. Okay. All right. Okay. All right. You're listening to Radio Lab. Radio Lab. From W. N. Y.
Starting point is 00:00:13 C. See? Yeah. Latif, how do I pronounce your name? Because I'm pronouncing it the Yemeni way. Do you pronounce it the Yemeni way? I'm excited about you're pronouncing it the Yemeni way. Latif.
Starting point is 00:00:27 Because it's used heavily by Yemeni way. Like, just to mean like something's nice or something? Yeah. Or how's your day going? Latif. Oh, yeah, I love it. Oh, that makes me feel so warm. Wait, now pronounce your name for me, so I know what, how did it say your name to Yem anyway.
Starting point is 00:00:45 Allah. Ala. It's like, at the end, it's too, it's too much. Everyone kept calling me Allah, and I was like, I know I'm great, but, you know. I think that's too far, guys. Hey, I'm Latif Nasser. This is Radio Lab. And I'm talking with Ella al-Shemahi. She's a paleo-anthropologist and evolutionary biologist.
Starting point is 00:01:10 And she's like, honestly, the modern-day Indiana Jones. She travels all over the place, collecting fossils. Sometimes this takes her into active war zones or through pirate-infested waters. And she does all of this to help piece together the story of how humans came to be. thing is as well our story is kind of epic man our story is epic she's got a new TV show out now on the BBC and PBS and in it she explains that the origin of our species
Starting point is 00:01:40 is kind of surreal we lived in a world that was a bit like Lord of the Rings there was obviously the Neanderthals where so many people have heard of but there were all these other species including one of my favorites homo fluorescence who were basically these hobbit-like humans They were really short.
Starting point is 00:01:57 They were about three and a half feet tall. Now, that means humans, the size of penguins, were living on this island in Indonesia called Flores. And on this island, there were giant rats and elephants, the size of cows. So humans the size of penguins were hunting elephants the size of cows. And at the same time that you had the Neanderthals and these penguin people, there were also other groups like the Denisovans. The Neanderthals of Asia.
Starting point is 00:02:25 There was a species called Homo Noletti, another one called Homo Lusinensis. This was the world that, you know, we were born into. A world where our little tribe was competing with these other little human-ish tribes and often losing. We were constantly not succeeding. And then we did. And we did in the biggest way possible. And the fact that we did that it was us and not one of these other groups, Ella says that was extremely unlikely.
Starting point is 00:02:57 The story of how that happened is amazing. It's what her TV show is all about. But what I wanted to talk to Ella about was this other very unlikely thing, her origin story. And the fact that she's the one telling us about all this stuff in the first place. Okay, so what you're referring to there
Starting point is 00:03:17 is something which I guess, I have not really known how to talk about. God, up until quite recently In fact, one of my friends turned around and said, just last year, you said that you might go to your grave with this. Wow. Why is, why was, why has this been so tender?
Starting point is 00:03:36 You come from a religious background. I did. I was very devout. No way. Yeah. And then I went off to high school. I went off to college and I was like, oh, this isn't what I thought it was.
Starting point is 00:03:50 And the, yeah, I don't know. I did not know. that. I never get to have this conversation with people who have any kind of religious background, let alone a Muslim background. Yeah. I think my fear is that I do not want my story to be a stick to beat people who are in religious communities with. I don't want that either. And actually, I feel like hearing Allah's story in her own words and how surprising and insightful and moving it is, like, I think it'll do the opposite.
Starting point is 00:04:26 So I just asked Ella to tell me about it, starting from the beginning. The community was incredibly tight. It was incredibly protective. It was absolutely overprotective as well. You know, like I... As a woman, I'm sure, yeah. Oh my God, yeah.
Starting point is 00:04:40 Like, I didn't wear trousers. I didn't want makeup. It was an ultra-conservative community. Where were you again? Where did you grow up? Birmingham, England. Birmingham, yeah. Yeah.
Starting point is 00:04:50 So my parents are Yemeni, but the community was kind of quite pan-Arab. And regardless of the denomination you came from or the sect or whatever, you were pretty much anti-evolution. And I really, really took to it. Like for me, okay, so the way when I grew up, it was this feeling of, okay, evolution is true. But Allah is this invisible hand. guiding evolution. It feels like you didn't have that. Yeah.
Starting point is 00:05:21 No. Clearly, you know, your family exists. Clearly, there were families and individuals who did explain things like that. Right, right. But there was no space for evolution in my family. And there was absolutely none in the missionary world. And what did you believe? Like, what was the creation story that you believed?
Starting point is 00:05:46 Yeah. How did you think people came to be? So I personally believed that we were created in a week, basically. God created it as in a week, as in the whole world, including Adam and Eve. It's weird. I feel like I know the Christian creationist story better than I know the Muslim creationist story in a way. Or is it? Very similar. They're very, very similar. The one difference is that the Christians give God a day off. Muslims are like, God doesn't need a day off. Anyway, so Ella was all in on this version of Islam And before she even learned how to drive She started sharing it with other people Yeah, I became a missionary at the age of 13
Starting point is 00:06:23 And like traveled the UK being a missionary And missionary means like you were going to Who are you going to talk to? Well, I was speaking to more lapsed Muslims Okay, yeah But also to the wider public That was a hard, what years were these like? Basically, you know, in the 1990s,
Starting point is 00:06:40 I was basically, certainly in the 2000s. Because I was thinking, like, after 2000, that would have been a much harder job talking to the lay public about Islam. Well, except that we felt like we had clearly been misrepresented by these lunatics, right? By these terrorists. And also remember, our communities were therefore
Starting point is 00:06:58 under more attack. Right. I'll say I was really young. It was kind of the world I knew, and I guess I have always been an all-or-nothing kind of person. Like, I clearly do not know how to do things in halves. And so I was like, okay, so this is the world around me. I'm not going to just do it in the calm chill that way that I should have done it like my siblings.
Starting point is 00:07:19 You were more like hard edge about it maybe than your siblings. I think I was more hardcore. Hardcore. You were more hardcore than your siblings. I mean, you know, if you would just speak to them and I don't want to put words in the mouth. No. They're just like, you just didn't have any chill. You know, so it's really funny. So they look at me now and they're like, you're like, you're still don't have chill. Like you just went from one extreme to the, you know, it's just really funny. Because they're not wrong.
Starting point is 00:07:41 Like, I could have just, you know, they're just relaxed. Was it one of those things, like, I remember for us, like, it was like, and I was, I feel like I was somewhat similar as you. Like, because, like, a bunch of my friends, like, they would go to the mosque, they would go to Moschid there, and then they would like, but then it's like afterwards, like, it's like Friday night. Like, we're going to go drinking and we're going to have fun. Like, and it was like that kind of thing. We would have had thoughts about you. No, no, I didn't do that. No, no, but my buddies did that.
Starting point is 00:08:09 And I was the straight-edge kid who was like, no, no, no, I'm not drinking. I'm not, I'm not smoking weed. I'm not doing anything, you think. So I was so strict that those guys wouldn't have even been my friends. Yeah. Except that I might have taken them on as projects. Right. So, okay.
Starting point is 00:08:25 Imagine you're a missionary and you're that age and you're good, right? Yeah. Your big thing that's hanging over you is what you're going to do at university. Because that was a big deal in your family? Yeah. And our family having a master's degree is the equivalent of a high school education. Wow. Okay, so what are all these people? What did they study?
Starting point is 00:08:41 All kinds of things. Historians, some legal, but like theology kind of legal minds. And my dad was very encouraging of us going into the sciences. Other people from her community had studied science to go into medicine or engineering, but Ella had a different idea. I was like, I'm going to go study evolution because I'm going to destroy Darwin's theory. Wow. Yeah. I tackle the underlying assumptions of things. And then to expose them and then to persuade them and then to like, like... To basically proselytize my version of it.
Starting point is 00:09:18 Yeah. You know, okay, so you're saying it's like this. Well, actually, have you considered it's actually like this? Yeah. Have you considered that the data could actually fall into this interpretation instead? And why that? Like, why was that the thing you fixated on? Because I'm a missionary.
Starting point is 00:09:32 My whole purpose is like to bring people to the message, to bring people to God. Right. And one of the biggest reasons why they're not is that they believe that God doesn't exist. And the reason for that is that evolution exists. So it's like it really is like for you, I mean, it feels like it's like the same debate from like Darwin's time. Like it's like, oh, you think we came from apes? We came from God. Yeah.
Starting point is 00:09:59 That whole monkey story ain't going to fly kind of thing. So, okay, so when you applied like what did you say or what did they? Yeah, somebody asked me this recently. They were like, hold on, hold on. So you sat there in the interview and you were like, yeah, so I'm just going to be destroying your theory from the inside. Yeah, that's right. Yeah, what did you say? None of that.
Starting point is 00:10:17 I just was like, I really want to study genetics. I think it's amazing. I love all the evolution classes, blah, blah, blah. But you were lying. That was a lie. I mean, I... Was it? I guess so.
Starting point is 00:10:30 I'm not happy with the fact that you use that word, but I guess it was. Yeah. Because it was a lie of a mission. Right. For sure. Yeah, well, actually, I guess it must have been a lie, because when they ask you, why do you want to study this, the actual answer is because I want to destroy this, and I clearly wasn't saying, ah, damn it. Did you, was this like a private mission, or did you talk to people about this? My, the other missionaries all knew about this.
Starting point is 00:10:54 Yeah. So, yeah, so, but it wasn't, you know, I was never turning around telling the, you know, other classmates who were. You were a double agent, basically. I like the sound of that. I mean, if you'd have known me at the age of 18, I was a dork, so the idea of being a double agent is somewhat hilarious. Look, I was obsessed. I was a woman on a mission. And so I turned up to University College London, which, for those of you in the know, is known as the godless place on Gower Street, because it's the first university to have allowed non-Church of England people to kind of join up. and I went to the Darwin building because Charles Darwin himself
Starting point is 00:11:36 he lived there and that was my department and by the way it's kind of hilarious because I was like dressed in very very conservative Muslim garb I wasn't even just in a hijab I was in the full
Starting point is 00:11:48 so I wasn't just in the head covering I was in the full jilbad which was like that full cloak by the way not that there's anything wrong with dressing however you want I'm like man you just be you you know there were a few girls in hijab actually but they were interested in more medical genetics. They weren't kind of doing what I was kind of,
Starting point is 00:12:07 what I was covertly up to. Right. I remember there was one girl who was also kind of vaguely associated with my world kind of thing. Yeah. And she was there and I was so excited because I thought I'd found like a partner in her. I was like, oh my God.
Starting point is 00:12:22 And I was sitting there and I was like, right, so this bit of the theory, like I'm just thinking that actually there's a different interpretation that you can have for this data, blah, blah, blah. And she just freaked out. And she looked at me and she was just like, look, I'm here because this is a mandatory course. I have to pass this evolution class. Otherwise, I don't get my degree.
Starting point is 00:12:39 Like, she had a firewall up. Yeah. But for Ella, there was no wall. Like, she was pushing these two worlds right up against each other. So there's like two things going on, right? So I'm just living my life being a missionary. I have an arranged marriage. Like, via my imam, by the way.
Starting point is 00:12:57 My dad wasn't even involved. That started in university or in grad school? Oh my, it was my first semester at university. Really? The imam suggested to me that, yeah, he wanted me to marry one of his other students, and I was like, okay, and so that took a while for... Excited about it? Were you flattered? Was that, did that feel good, or did that feel icky? You know what? Like, I didn't know him. I had three chaperoned meetings with him to decide if I was going to agree to marry him. And then we basically never talked, ever. I can't explain it enough. I just didn't know him.
Starting point is 00:13:30 and like we had to get my dad to agree and so that took a while because dad didn't want me getting married before I'd finished my first degree and so we had to wait and so you know all of this was going on I was traveling up and down like doing this doing that and at the same time it's like it's just constantly like picking at this
Starting point is 00:13:48 this theory of Darwin's right I mean effectively what I was doing was trying to unpack a massive puzzle now everybody else had already unpacked it 150 years ago and I'm coming on along being like, hold on. Hold on, we can put these pieces together another way. We can just, you haven't thought of something.
Starting point is 00:14:06 Give me a minute. And by the way, some people do that to great success. Some people have won Nobel Prizes on the back of this. I just picked the wrong puzzle. So Ella is going to class every day, learning about the evidence for evolution, and the story the scientists say that that evidence tells us. And of course, she's looking for holes in that story. And one of the first holes that Ella had always noticed was that particular moment in evolution
Starting point is 00:14:36 when one species somehow like, poof, becomes another. Like, how does that happen? And then one day, she's sitting in class and the professor starts talking about this experiment. The Drosophila fruit fly experiment. Yeah. So basically, because Drosophila lived for such a short amount of time, you can basically, like, you know, instead of it being, you know, a mountain pops up between two animals
Starting point is 00:15:04 and it takes, like, you know, hundreds of thousands of years for them to evolve, you're doing it with Drosophila in a lab and you're kind of doing it in a much shorter time frame, you're just kind of separating them. Yeah. And without getting into it, they were starting to see the process of speciation in the lab. And I was like, oh, that's not good. Because if we're watching them become new species, we're watching it. evolution, which I don't think happened.
Starting point is 00:15:31 Yeah. But my only comfort with that experiment was that it was being done in the lab. And I just thought, okay, but that might not be happening in nature. Yeah. Maybe it's being forced in the lab. Maybe in nature that wouldn't be happening. But she keeps going to more lectures and eventually she's running into other problems. Like stratigraphy, just the layers of earth and that kind of.
Starting point is 00:15:58 sequence of animals that you get in them. And they are broadly chronological. And you do see an evolutionary process there. Yeah. You just do. And it's really, really hard to explain. It's like you dig deeper, you see simpler things, kind of, generally. Yeah.
Starting point is 00:16:14 You know, it is, forgive my language. You're like the BBC, right? You can't broadcast swearing. No, we can broadcast swearing. Yeah. Oh, nice. Sorry, I've been cleaning up my language. No, go for it.
Starting point is 00:16:27 Yeah, like you would, you would, you would, you would, you would. you would be looking at these stratigraphic sequences. And it was a, you know, forgive my language, but it was a motherfucker because you were just like, right, we haven't gone from complex to simple. By and large, we go from simple to complex or more complex. And it was just a consistent pattern. And it's very, very hard to explain that. So then I was like, okay, theoretically, the real, real issue is Adam.
Starting point is 00:16:58 Right? So technically speaking, I can believe in evolution as long as it's not Adamnave. As long as it's not us. We're the exception, right? Right, right. So you're like, okay, so you gave a little ground. You were like, this makes sense. I can give. A lot of ground. All other species. All other species. All the billions. That's right. But not us. Yeah. And then what happened was I came across retro transposons, which are very, very complicated to explain. But basically, it's like a foreign organism's DNA within within our own bodies within every. So retrotransposons, they're little bits of DNA from, for example, a virus that infected
Starting point is 00:17:36 our ancestors millions of years ago and just like got stuck in our genome and passed on from generation to generation. They're like this little historical record of something that happened to us a long, long time ago. And the reason Ella remembers this is that when she was learning about retrotransposons in a lecture, the professor mentioned this. weird fact about these little bits of DNA. The pattern of mutations within the retro-retrosposons that we have,
Starting point is 00:18:06 a line on a family tree with what you would expect from evolution if you then looked at those same retro-transposons within chimps. In other words, these little bits of DNA, I mean, there are hundreds of them, are lodged in the chimp genome in exactly the same places that they're lodged in our genome. How does that, like the only interpretation from the mutations that you find in retro-trotransposons is that it is evolution through dissent with modification over, you know, hundreds of thousands. There's no other interpretation.
Starting point is 00:18:33 Like God would have had to copy paste or something? Yeah. This is the thing because one of the arguments, for those of you don't know, one of the arguments that creationists use to explain, well, why is our DNA so similar? Yeah. Right? Like, why is our DNA so similar to chimps?
Starting point is 00:18:48 They're like, yeah, but they look similar, and they have so many similar behaviors, and there have so many mechanisms, blah, blah. And on a level, on one level, you're like, oh, okay, that is actually, like, there is some logic to that. Yeah. Retro-transposons, they're not functional. Yeah.
Starting point is 00:19:04 It's not like, oh, it's a bit of DNA that helps me process, for example, water or helps me process carbohydrates. It's a non-functional bit of DNA, and yet its mutation pattern fits almost perfectly with an evolutionary family tree. And it was just like, it's just sorry that's the noise that you make when your whole life is about to fall apart that that exact noise is the noise you make and I was just in hell like I was in hell
Starting point is 00:19:40 um there'd be times where I'd just be looking at my window just going oh my god like what is this like what am I going to do were you living with this guy at that point or what this guy my ex-husband yeah you're married yeah I'm married yeah I'm married wasn't doing great, partly because we had an arranged marriage and we didn't know each other, but partly for a number of different reasons, one of which was this issue, like, you know, he, like, I was clearly struggling. And then there was a moment, just an awful moment, which was kind of, I was just in the shower. And as you often do in the shower, you're kind of just having a conversation with yourself. You're also, you know, bluntly naked and you're very exposed. But you're in a safe
Starting point is 00:20:25 place, right? And I kind of, I basically, I basically tell myself that I have to find the strength to be honest, that I just, I believe in evolution. And I just fell to the floor. I just, I was like hysterically crying. I was just so, so distraught. And the reason I was so distraught at this point was that I knew that meant I was going to have to leave my world. How do you leave your whole world and try to join another one? And what does it do to you if you do that? We'll be right back. Hey, I'm Latif Nasser.
Starting point is 00:21:32 This is Radio Lab. I'm talking with Ella al-Shemahi, who went into college as a creationist and came out an evolutionary biologist. A 180 that she feared would basically destroy her life as she knew it. I had no idea what was going to happen with my family. You know, it hadn't happened in my family before, right? But what I did know is it was going to drive a massive wedge.
Starting point is 00:21:57 And why did it feel, like, why did it feel so existential? Like, like, these things could not coexist. There was no room for you to believe in evolution and still be a part of your community. Because it's such an extreme thing in my world and say that you believe in evolution. And, you know, that's just, we just didn't do that. And by the way, all cases where that did happen, like, let me tell you, loads of those girls got cut off. Thank God my siblings came through in the way that they did. Wow.
Starting point is 00:22:32 How did they come through? They decided to embrace me regardless. They decided that I was their sister regardless. Oh, it makes me want to cry. And what about, like, your friends and other people in the community? I didn't tell people. I just disappeared I didn't tell people you just ghosted people yeah I literally just disappeared and that's because um I was a missionary and I knew the training and the training is if somebody
Starting point is 00:23:00 you know right falls you go collect them basically yeah and I did not have the energy and also this is the strange thing I didn't want anyone else to follow me because I don't want them to go through what I was going through I was like no you know what you don't need to learn about evolution you just stay where you are yeah this is awful It was truly awful time. I had no idea how to exist in a secular world. Suddenly, every single thing did not have a rule attached to it, which you might think is freeing, except if that's the only thing you've ever known, that's terrifying.
Starting point is 00:23:34 It was like you went into the bathroom with the left foot, you left with the right foot, you wrote with your right hand, you, you, you, the prophet would have done this in this situation. Yeah, yeah, yeah, it's like every single thing is prescribed and suddenly it was like, good luck. I didn't make eye contact with men I literally never made eye contact with men I took my headscarf off and I basically
Starting point is 00:23:56 I turned up to the to like a gas station and it was the most anti-climactic and has probably informed a huge part of my partner after since because no man cared Like, I had been told my whole life that, like, you know, my hair was like, and, you know,
Starting point is 00:24:19 you got to cover up because it's a fitness night. It's like, it's corrupts the earth if you, it's about translation, but like, you know, isn't it's all these things that you, these things you've got to do to not, um... Because it's like raw, it's like raw sexuality. It's like that kind of thing? Is that the feeling of it? I don't know what it was, because let me tell you, nobody cared. Like, nobody cared.
Starting point is 00:24:38 Nobody, I cannot express this enough. There were no men dropping from my sheer beauty. Nobody was fainting. Nobody was doing anything. Like, nobody cared. And it was so funny. But it was, you know, it was quite an adjustment. It was like, I've got to now learn to fit in.
Starting point is 00:24:54 And it's funny because I think anthropologists traditionally, you know, I am a paleoanthropologist. You know, you kind of go and sit with these exotic and inverted commas tribes and you kind of learn their ways. Right. And I was like, my exotic tribe is just central London. That's it. Me, and I would sit there studying people's behavior and like going, all right, so this is how they act. Okay, so this is, okay, all right, so that's, you know, I wrote a book about the handshake, right? Writing a book about the handshake does not come because somebody is like just casually not questioning.
Starting point is 00:25:26 Writing a book about the handshake comes when you are obsessively reading the behavior of every person around you. Right. Because in your culture, you never shook hands with men. Right. I had this one friend who was just like, oh, you must be so relieved to be free. And I was just like, do you understand the truth? trauma that I've just been through. I didn't want this. This isn't what I wanted. Certainly, like, now, 10, 13 years later, I can look back and go on. I'm glad that, you know, I'm not constrained by dogma unless I pick that dogma. But, you know, let's not pretend that this
Starting point is 00:26:00 is a fun world. I mean, I'd definitely rather be here, but let's not pretend it's perfect. Like, I think the community thing is such a, I think this is what I have found really, really, really difficult to explain to so many of my secular friends who are basically my tribe. Now, let's be honest, right? Yeah. I will never, ever, ever be in a community like that again. I think religious communities are warm. They engulf you.
Starting point is 00:26:26 They embrace you. Your hot water goes off. Everybody offers you their place. Somebody ends up in hospital and people get angry with the hospital administration because they're like, what are you talking about? people during visiting hours and what's this visiting hours this person needs us all around the clock and it's just kind of oh my god i feel i'm raising kids right now and i'm not raising them in the mosque that i grew up in and it's like it's sad it's i i i yearn for that it's so difficult
Starting point is 00:26:59 it was like it was like i i didn't know who i was anymore and the people that were around me that would normally love me and and knew who i was they were all new to And in the midst of all this upheaval, Ella was still going to school and starting to become obsessed with the things she would spend her entire career studying our origin story. That moment when there were all these little groups
Starting point is 00:27:25 of proto-humans living together on the planet at the same time, but also very much separate from one another. I think it is no surprise that having gone through what I've gone through, that when I look at our story, the science of our story, that I... I feel something. Like, I feel something.
Starting point is 00:27:45 We know that everybody from outside of sub-Saharan Africa, and even some people within sub-Saharan Africa, have some Neanderthal DNA in them. And that can only be explained by basically one of our great-great-great-grandparents. Getting it on. Yeah, having sex with a Neanderthal. So there's a scandal in the family, basically. Now, usually, right, the way this would be presented is,
Starting point is 00:28:07 oh, there's some Neanderthal DNA, so that means that there was some kind of intercourse, blah, blah, blah. right we take a moment and instead it's like hold on a second right that means that one of our ancestors not like a theoretical one of my and your ancestors yeah was half half right and i'm i'm not mixed race but i'm mixed heritage so i'm a british arab right let me tell you that was confusing growing up at times right at times i was like it's a bit weird i'm like what would it be like to not just be mixed heritage, don't be mixed race, but mixed species? Like, what would that have been like? And what would the mother have felt? Like, how would she have felt? Would she have been
Starting point is 00:28:54 sitting there hoping that the child would look more homo sapiens than Neanderthal? Because, you know, she doesn't want them to get ostracize. She doesn't want them to get teens. Wow. Like pregnant, like that mom is sitting there pregnant, like thinking about what her baby, whether her baby's going to have a brow ridge or a chin or something. Seriously. Is there any evidence to suggest that crossovers like Neanderthal and Homo sapiens, us, couplings, made us more successful. Like, those... Yeah. Yeah.
Starting point is 00:29:23 Yeah. So, we were the new kid on the block. And for example, when we entered into Neanderthal territory, Neanderthal territory being kind of Europe and Northern Asia, we would not have had immunities to local diseases. So when we interbreed with those people, it's effective. like a cheat. So suddenly we end up with immunities to things that would have taken ourselves tens if not hundreds of thousands of years to evolve for. There are some really, really good examples actually. And the best one is the Tibetan example. Are you familiar with
Starting point is 00:29:57 this one? No, tell me. So Tibetans live obviously very high altitude and the mechanism, the genetic mechanism by which they are able to exist at high altitude is very different from the genetic mechanism that exists in other populations who exist at high altitude. And the mutation is actually one that they inherited of Denisovans. Like we drank their superpowers kind of thing. Yeah. Yeah. Okay. So now, so there are these sort of hybrid people. Yeah.
Starting point is 00:30:32 And you are kind of like, in a way, you're one of these crossover people. I mean, this experience, this ordeal that you went to. Yeah, yeah, yeah. But like, what, so okay, so if this is, if that's the value of the crossover person, it's like, oh, I can get, I now have superpowers from both worlds or something. What did you gain from that crossover? I would say, I was so traumatized by it. still am like within a like a second i could get quite upset about it um and i think when you've been through that you are much more patient with people who deny the science don't trust the
Starting point is 00:31:25 science um because i understand that i am when i am trying to persuade somebody of a scientific point, nine times out of ten, I'm not trying to persuade them of one scientific point. I'm effectively taking apart their worldview. And because I've gone through that, I approach that with empathy by and large. It doesn't mean that every so often I don't get irritated, but I just fundamentally at my core, understand that when somebody has that belief, it's not one belief, it's a belief system. And I then approach it as such. So then what's what I find myself doing is I actually have less interest in debating that point with them and more interest in bonding with them as a person
Starting point is 00:32:18 and showing them who I am and me seeing their humanity. That's why it's gently does it for me in terms of methodology. And also fundamentally in my mind, accepting that they may never believe me. They may never accept my version of events, and that's okay. Ella, also. Shamahi. Again, her show is called Human. It's on PBS and the BBC. Man, she's so good in it. And it really
Starting point is 00:33:03 features the full menagerie of proto-humans. The team of fully human humans who put this episode together, not even one Neanderthal among them, was Jessica Young and Pat Walters with help from Sarakari. It was fact-checked by Diane Kelly. Special thanks to Humza Syed and Misha Yusuf. And you, for listening. We will be back soon with another episode. I just have to kill this tiny elephant first. Catch you later. Hi, I'm Monica, and I'm from Mexico City.
Starting point is 00:33:42 And here are the staff critics. Radio Live was created by Jad Abum Roth and is edited by Zoren Willer. Lulomiller and Latif Nazar are also. co-host. Elon Kiffey is our director of sound design. Our staff includes Simon Adler, Jeremy Bloom, W. Harry Fortuna, David Gable, Maria Pazutierrez, Sindhu Jan Sanbandan, Matt Kilty, Annie McEwan, Alex
Starting point is 00:34:10 Nissen, Sarah Karii, Sarah Sandbach, Anisa Bice, Ariane Wack, Pat Wolters, Molly Webster, and Jessica Young. With help from Rebecca Rand. Our fact-checkers are Diane Healy, Emily Krieger, Anna Pujolmascini, and Natalie Middleton. Hey, Radio Lab, Michael, Tacoma, Washington. Leadership support for Radio Lab Science Programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radio Lab was provided by the Alfred P. Sloan Foundation. Thank you.

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