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SCOUT· 64%14m·2026-02-13·Science
SCOUT· 64%14m·2026-02-13·ScienceWhy do we kiss? It's an evolutionary conundrum
Short Wave · 1430
The evolutionary purpose of kissing has long eluded scientists. Smooching is risky, given things like pointy teeth, and inherently gross, given an estimated 80 million bacteria are transferred in a 10 second kiss. And yet, from polar bears to humans, albatrosses and prairie dogs, many animals kiss. So, what gives?…
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64%
SCOUT
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