TIL humans are the only animal with a chin. We aren't sure why. - eviltoast
  • SuddenDownpour@sh.itjust.works
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    5 months ago

    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.

    • Tak@lemmy.ml
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      5 months ago

      “They” was towards neanderthals not vestigial elements. They are extinct.

      • SuddenDownpour@sh.itjust.works
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        5 months ago

        Homo Sapiens develop a mutation XYZ that makes them not be attracted towards Neanderthals -> Neanderthals go extinct -> XYZ is NOW vestigial.

        • Tak@lemmy.ml
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          5 months ago

          The genes were from Neanderthals not to make them unattractive and they’re also not vestigial. One is a very common gene related to blood clotting and can cause a higher risk of heart disease.

          In other words, humans were fucking Neanderthals and we know it because of DNA. If they had never gone extinct it is without question the boinking would have continued.