@bhmnscmm@lemmy.worldcake 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-square48fedilinkarrow-up1540arrow-down110
arrow-up1530arrow-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.org@bhmnscmm@lemmy.worldcake to Today I Learned@lemmy.worldEnglish • 11 months agomessage-square48fedilink
minus-squarenomadlinkEnglish3•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.