bhmnscmm@lemmy.world to Today I Learned@lemmy.worldEnglish · 11 months agoTIL yawning is observed in almost all vertebrate animals and is "contagious" across species. There is no consensus on why yawning occurs.en.wikipedia.orgexternal-linkmessage-square50fedilinkarrow-up1583arrow-down110
arrow-up1573arrow-down1external-linkTIL yawning is observed in almost all vertebrate animals and is "contagious" across species. There is no consensus on why yawning occurs.en.wikipedia.orgbhmnscmm@lemmy.world to Today I Learned@lemmy.worldEnglish · 11 months agomessage-square50fedilink
minus-squareSwednecklinkfedilinkEnglisharrow-up2·11 months agoIt seems most sensible to me that it serves a bunch of uses: clearing the lungs, alerting yourself and others that you’re tired and probably need someone else to take over, social bonding, spooking predators…
It seems most sensible to me that it serves a bunch of uses: clearing the lungs, alerting yourself and others that you’re tired and probably need someone else to take over, social bonding, spooking predators…