Cats were a feline species native to the planet Earth. There are many species of the carnivorous Cat. Domesticated cats are the most common for house pets, but there are many other species of cats in the wild that are much larger and far more fearsome, such as Lions, Tigers, Leopards, Cheetahs, and many others. Catwoman, Cheetah and Kitten are supervillains that are modeled after cats. Bronze Tiger, Wildcat and the WildC.A.T.s also take their names from cats.
When Doctor Rebos and Loco were posing as journalists from Bow-Wow Magazine, Loco had a "cat of the year" plaque that he had bought to use as a substitute for a "dog of the year" plaque, which he was to use to take a picture of Wonder Dog with.