[ghkbrew]

I regret to report that there is surely no such thing as a fish.[0]

[0] https://quoteinvestigator.com/2024/12/04/no-fish/

[pavel_lishin]

It also reminds me of a bit in Unsong, a book where there's quite a bit of discussion about whether the whale is a fish or not.

[bloak]

There's a chapter in Moby-Dick with a similar discussion.

[klipt]

Whales, like us, are descended from lobe finned fish, so they are as much fish as we are.

[IAmBroom]

Nope.

But geese are.

[boxed]

Or humans are fish. You can pick one.

[mcv]

Only cladistically. There's a better argument that there's no such thing as a tree or crab. As far as I understand, at least the common ancestor of all fish was still a fish.

I mean, do reptiles exist? Fish exist.