gedaliyah@lemmy.world to Today I Learned@lemmy.worldEnglish · 3 days agoTIL humans are the only animal with a chin. We aren't sure why.www.smithsonianmag.comexternal-linkmessage-square158fedilinkarrow-up1484
arrow-up1484external-linkTIL humans are the only animal with a chin. We aren't sure why.www.smithsonianmag.comgedaliyah@lemmy.world to Today I Learned@lemmy.worldEnglish · 3 days agomessage-square158fedilink
minus-squareFiniteBanjo@lemmy.todaylinkfedilinkEnglisharrow-up35·3 days agoI figure walking upright made being hit from below more common, necessitating thicker bones to protect the very sensitive nerves of the jaw.
I figure walking upright made being hit from below more common, necessitating thicker bones to protect the very sensitive nerves of the jaw.