@gedaliyah@lemmy.world to Today I Learned@lemmy.worldEnglish • 8 days agoTIL humans are the only animal with a chin. We aren't sure why.www.smithsonianmag.comexternal-linkmessage-square158fedilinkarrow-up1491arrow-down114
arrow-up1477arrow-down1external-linkTIL humans are the only animal with a chin. We aren't sure why.www.smithsonianmag.com@gedaliyah@lemmy.world to Today I Learned@lemmy.worldEnglish • 8 days agomessage-square158fedilink
minus-square@FiniteBanjo@lemmy.todaylinkfedilinkEnglish32•7 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.