Curated Tumblr

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For preserving the least toxic and most culturally relevant Tumblr heritage posts.

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Don't be mean. I promise to do my best to judge that fairly.

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submitted 2 years ago by NotSpez@lemm.ee to c/curatedtumblr@sh.itjust.works

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[–] merc@sh.itjust.works 1 points 2 years ago (1 children)

But there is no good phylogenetic definition because all the animals we call “fish”

The challenge was to come up with a group "which includes both trout and sharks but not humans". It seems like "gills" satisfies that pretty well.

[–] Strawberry@lemmy.blahaj.zone 1 points 2 years ago

Animals with gills do not form a monophyletic group.