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-up1581arrow-down110
arrow-up1571arrow-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-squarenomad@infosec.publinkfedilinkEnglisharrow-up3·11 months agoMight be a group protection mechanism to indicate low oxigen in crammed spaces qith many individuals. In addition to that could be a geoup trigger for rest.
Might be a group protection mechanism to indicate low oxigen in crammed spaces qith many individuals. In addition to that could be a geoup trigger for rest.