gedaliyah@lemmy.world to Today I Learned@lemmy.worldEnglish · 7 months agoTIL humans are the only animal with a chin. We aren't sure why.www.smithsonianmag.comexternal-linkmessage-square150fedilinkarrow-up1464arrow-down113cross-posted to: til@lemmy.ca
arrow-up1451arrow-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 · 7 months agomessage-square150fedilinkcross-posted to: til@lemmy.ca
minus-squareSuddenDownpour@sh.itjust.workslinkfedilinkEnglisharrow-up4arrow-down1·edit-27 months agoBecause otherwise you might be mating with a Neanderthal.
minus-squareTak@lemmy.mllinkfedilinkEnglisharrow-up4·7 months agoBy DNA analysis that was completely on the table till they went extinct.
minus-squareSuddenDownpour@sh.itjust.workslinkfedilinkEnglisharrow-up1·7 months agoNo “till”, plenty of living beings have vestigial elements that were positive at some point of their history, yet no longer are, but are still maintained because there isn’t evolutionary pressure to get rid of them.
minus-squareTak@lemmy.mllinkfedilinkEnglisharrow-up1·7 months ago“They” was towards neanderthals not vestigial elements. They are extinct.
minus-squareSuddenDownpour@sh.itjust.workslinkfedilinkEnglisharrow-up2·7 months agoHomo Sapiens develop a mutation XYZ that makes them not be attracted towards Neanderthals -> Neanderthals go extinct -> XYZ is NOW vestigial.
Because otherwise you might be mating with a Neanderthal.
By DNA analysis that was completely on the table till they went extinct.
No “till”, plenty of living beings have vestigial elements that were positive at some point of their history, yet no longer are, but are still maintained because there isn’t evolutionary pressure to get rid of them.
“They” was towards neanderthals not vestigial elements. They are extinct.
Homo Sapiens develop a mutation XYZ that makes them not be attracted towards Neanderthals -> Neanderthals go extinct -> XYZ is NOW vestigial.