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gedaliyahtoToday I Learned@lemmy.worldEnglish·4 months ago

TIL humans are the only animal with a chin. We aren't sure why.

(www.smithsonianmag.com)

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TIL humans are the only animal with a chin. We aren't sure why.

(www.smithsonianmag.com)

gedaliyahtoToday I Learned@lemmy.worldEnglish·4 months ago

157

A Chin-Stroking Mystery: Why Are Humans the Only Animals With Chins?

www.smithsonianmag.com

It's an evolutionary conundrum, and scientists are still divided over the answer

FiniteBanjoEnglish
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4 months ago
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I figure walking upright made being hit from below more common, necessitating thicker bones to protect the very sensitive nerves of the jaw.