Why do we kiss? It's an evolutionary conundrum
Short Wave
NPR
4.7 • 6.5K Ratings
🗓️ 13 February 2026
⏱️ 14 minutes
🧾️ Download transcript
Summary
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Transcript
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| 0:00.0 | This message comes from TED Health. |
| 0:02.2 | From smart daily habits to new medical breakthroughs, find reliable information you won't hear anywhere else on TED Health. |
| 0:09.5 | This month, tune in to a special series featuring guests on the Science of Raising Kids. |
| 0:15.0 | Listen to TED Health, wherever you get your podcasts. |
| 0:18.8 | You're listening to Shortwave from NPR. |
| 0:24.5 | Happy early Valentine's Day shortwavers and singles Awareness Day. |
| 0:28.8 | And if you love Parks and Rec, like I do, Galentine's Day. |
| 0:31.6 | Every February 13th, my lady friends and I leave our husbands and her boyfriends at home, |
| 0:36.4 | and we just come and kick it breakfast style. |
| 0:38.7 | It's like Lilith Fair, minus the angst. |
| 0:41.5 | Seriously, that scene changed my life. |
| 0:43.2 | But yeah, this time of year, love and connection are on a lot of people's minds. |
| 0:47.8 | And I recently met someone who studies a particular behavior, often used to show each other how we feel. |
| 0:52.6 | I'm talking, of course, about a kiss. |
| 0:56.0 | You know, most people have had a kiss, whether that's romantic or more platonic. So I think |
| 1:02.1 | people are really interested in that. And then also surprised, you know, the first question is, |
| 1:06.4 | what other animals kiss? Oh God, which ones? What did they do? What does it look like? |
| 1:10.4 | Matilda Brindle is an evolutionary biologist at the University of Oxford, who has studied |
| 1:15.2 | the evolution of kissing. So, you know, I get wheeled out at parties quite often. And by the way, |
| 1:21.2 | she says that not all human cultures kiss. In Western society, at least, it just does seem like |
| 1:26.8 | this huge, huge cultural phenomenon. |
| 1:29.5 | You know, movies end with a kiss. |
... |
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