this post was submitted on 22 Aug 2025
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Whales are mammals. How is the dude on the right even being pedantic and not just outright dumb?
There isn't a simple evolutionary definition of "fish", not the same way there is for, say, mammals. If you found the common ancestor of everything we call a mammal and said "everything descended from this one is also a mammal", you'd be correct. If you did that for everything we call fish, every animal in the world would be a fish. Also, we decided which animals were fish mostly on vibes, so without a clear definition you can pedantically argue that everything is a fish including mammals.
That's not quite true. A lot of worms, for example, wouldn't be fish, but all fish would be worms. Most invertebrates also wouldn't be fish.
Mammals are fish
Isn't that only if they are born between February 19th and March 20th? 🤔
Those are fishies.