• DragonTypeWyvern
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    2 days ago

    Fish absolutely exist cladistically, OP just didn’t want to admit they’re a land dwelling fish. You believe the implications of cladistics or you don’t, cowards.

    I’d also argue it’s relatively easy to separate fish-fish from land fish from land fish that became sea fish again to bully the fish fish.

      • DragonTypeWyvern
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        2 days ago

        Nah. You could have a fish that evolved out of having a spine (see: Chuck Schumer) but you can’t evolve out of a clade.

      • Tuukka R@sopuli.xyz
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        2 days ago

        Seems so. Wikipedia tells there are seven classes of vertebrates:

        • Agnatha (jawless fishes, paraphyletic)
        • Chondrichthyes (cartilaginous fishes)
        • Osteichthyes (bony fishes, paraphyletic)
        • Amphibia (amphibians)
        • Reptilia (reptiles, paraphyletic)
        • Aves (birds)
        • Mammalia (mammals)

        So yes, fishes is the same thing as vertebrates.

        Probably because if you were a vertebrate living in the sea, you needed some sort of gills and fins and such. And those are what makes people assume something is a “fish”.

      • DragonTypeWyvern
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        2 days ago

        Considering that you misspelled the name of a common term and that’s not a biological classification I’m going to stand by what the doctorates who taught my zoology courses said.