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What’s in a name? (i.imgur.com)
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[-] merc@sh.itjust.works 1 points 2 years ago

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.

this post was submitted on 29 Oct 2023
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