Fish

Georgia Aquarium Giant Grouper edit 2017031722 58cc66781f49d e1489790640483

A fish is any member of a paraphyletic group of organisms that consist of all gill-bearing aquatic craniate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups.

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