•  dogsoahC   ( @dogsoahC@lemm.ee ) OP
      link
      fedilink
      English
      13 months ago

      What I’m getting at is taxonomy. A valid taxon has to include all descendents of the crown group. That means that for monkeys to constitute a valid taxon, apes must be included. Same reason why birds are technically dinosaurs.

      • A monophyletic clade must include all descendants. A taxonomic group itself can hold anything.

        Viruses can also integrate DNA into cells and it sticks there forever sometimes, thus bypassing the tree entirely (making it a network, i.e. no longer acyclic thus no longer a tree).

        There is a lot of weirdness in the world, stranger than people have dreamed.:-P

        •  dogsoahC   ( @dogsoahC@lemm.ee ) OP
          link
          fedilink
          English
          13 months ago

          Fair enough. I just belong to the people who require a valid taxon to be monophyletic. (Btw., “clade” already implies monophyleti…city? Monophyleticness?)

          Also, shut up about viruses, they make a mess of everything and are beautifully chaotic and I hate them and I love them. xD