Today I [email protected]English • 11 months ago

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

www.smithsonianmag.com

157

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

www.smithsonianmag.com

@[email protected] to

Today I [email protected]English • 11 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

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3•11 months ago
Well, you can’t take it on the chin if you don’t have one I suppose.

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