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STUDY: Scientists Find That Cleaner Wrasse Fish Are Able to Pass the ‘Mirror Test’ and Identify Themselves in the Mirror

That's big.
cleaner wrasse, fish mirror test, mirror test

Helmut Corneli / Alamy

“There is a lot of evidence now that fish are no dumber than birds or many mammals—and in many cases they are just as intelligent,” researcher Dr. Mike Webster said at the time. “Many fishes—such as minnows, sticklebacks and guppies—are capable of the same intellectual feats as, for example, rats or mice. They can learn their way around mazes, they can learn to recognise other fish, and they can remember which individuals are better competitors.”

It’s enough to make one reconsider that tuna sandwich for lunch.

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    Kat Merck is a freelance writer and editor based in Portland, Oregon. An amateur naturalist who stud... keep reading