gedaliyah@lemmy.world to Today I Learned@lemmy.worldEnglish · 3 months agoTIL humans are the only animal with a chin. We aren't sure why.www.smithsonianmag.comexternal-linkmessage-square147fedilinkarrow-up1488arrow-down113cross-posted to: til@lemmy.catodayilearned@lemmit.online
arrow-up1475arrow-down1external-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 months agomessage-square147fedilinkcross-posted to: til@lemmy.catodayilearned@lemmit.online
minus-squareFiniteBanjo@lemmy.todaylinkfedilinkEnglisharrow-up35arrow-down4·3 months 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.