Hello fish friends! Today is the vampire squid a real cutie! Named after its distinct color and appearance, it is the only living cephalopod that is a scavenger. It also has the largest eyes proportional to its body in the animal kingdom. It lives 2-3000feet deep so unfortunately seeing these beauties in person isnt easy. They also cant change colors like other cephalopods or shoot out ink, because both would be pointless in the darkness of that depth. Instead, when threatened, they shoot out a bioluminescent mucus. As cool as this is, I dont want to be sneezed on by a squid.

  • idegenszavak@sh.itjust.worksEnglish
    4·
    26 days ago

    No, wtf

    Edit: misunderstood kerrigan

    https://en.m.wikipedia.org/wiki/Dolphin

    Dolphins are descendants of land-dwelling mammals of the artiodactyl order (even-toed ungulates). They are related to the Indohyus, an extinct chevrotain-like ungulate, from which they split approximately 48 million years ago.

    The primitive cetaceans, or archaeocetes, first took to the sea approximately 49 million years ago and became fully aquatic by 5–10 million years later.

    • kerrigan778@lemmy.blahaj.zoneEnglish
      31·
      26 days ago

      Can’t evolve out of a clade. Dolphins, and all tetrapods, are lobe finned fish, and bony fish, and jawed fish, and chordates respectively. There is no clade that includes trout and sharks that does not include dolphins, nor is there a clade that includes trout and coelacanths or lungfish that does not include dolphins.

      • TuEstUnePommeDeTerre@lemmy.blahaj.zoneEnglish
        1·
        26 days ago

        It’s literally the first sentence of the Wikipedia article on Dolphins.

        A dolphin is an aquatic mammal in the clade Odontoceti (toothed whale).

        They’re mammals not fish.

          • idegenszavak@sh.itjust.worksEnglish
            3·
            26 days ago

            Ok, now I understand what you say, so for friday fish facts you can just add mammal facts as well, so the post is still wrong, because cephalopods are not fish, but me on the beach is a fish.

            Fun friday fish fact about me, a human fish: if you swim in the sea with a long beard, there is a big chance that small dead fishes will get tangled in your beard. Wash your beard after swimming in the sea as the smell of these small dead fishes will become unbearable later.

            • kerrigan778@lemmy.blahaj.zoneEnglish
              4·
              26 days ago

              Now you’re getting it, human fish fact would be far more technically correct than a cephalopod being there. But fish doesn’t have to be a scientific term, just like tomato and cucumber can culinarily be vegetables, so too can a cephalopod be a fish. Just not scientifically. https://youtu.be/hVjSJV0WoDQ scishow did a shorter video on the topic too.

          • TuEstUnePommeDeTerre@lemmy.blahaj.zoneEnglish
            1·
            26 days ago

            Last comment on this because I can’t logic someone out of a position they didn’t logic themselves into.

            Taxonomy is a description of how we (scientists that know way more than me) believe various species are related over millions of years that life on Earth has existed. Your supposition is incorrect and I’ve given up on this response.

            • kerrigan778@lemmy.blahaj.zoneEnglish
              4·
              26 days ago

              My position is literally that of modern evolutionary biology. Fish is not really an accepted scientific term anymore because it doesn’t really mean much. Coelacanths are more closely related to humans than they are to trout, which are more closely related to you and me than they are to sharks. Dolphins, obviously being mammals are much more closely related to us like you said than any of those, but you still can’t not classify them as fish. Clint’s Reptiles is a great youtube channel made by an evolutionary biologist that does some good crash courses on the modern science if you want to understand it better.