bhmnscmm@lemmy.world to Today I Learned@lemmy.worldEnglish · 1 year 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-square36fedilinkarrow-up1338arrow-down15
arrow-up1333arrow-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 · 1 year agomessage-square36fedilink
minus-squarenomad@infosec.publinkfedilinkEnglisharrow-up2·1 year 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.