Today I [email protected]English • 4 months ago

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

www.smithsonianmag.com

149

488

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

www.smithsonianmag.com

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Today I [email protected]English • 4 months ago

149

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

Chat

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68•4 months ago
TIL chins are only chins because they stick out. I had always considered the front of a lower jaw to be a “chin”.
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  23•4 months ago
  In other words some people really have no chin…

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