TIL humans are the only animal with a chin. We aren't sure why. - eviltoast
    • Tak@lemmy.ml
      link
      fedilink
      English
      arrow-up
      4
      ·
      5 months ago

      By DNA analysis that was completely on the table till they went extinct.

      • SuddenDownpour@sh.itjust.works
        link
        fedilink
        English
        arrow-up
        2
        ·
        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
          link
          fedilink
          English
          arrow-up
          1
          ·
          5 months ago

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

          • SuddenDownpour@sh.itjust.works
            link
            fedilink
            English
            arrow-up
            2
            arrow-down
            1
            ·
            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
              link
              fedilink
              English
              arrow-up
              1
              arrow-down
              2
              ·
              edit-2
              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.