They are known to eat fish, frogs, rodents, birds, crabs, and snakes.[1] They have also been known to eat turtles, as well as young crocodiles and crocodile eggs.[21] Water monitors have been observed eating catfish in a fashion similar to a mammalian carnivore, tearing off chunks of meat with their sharp teeth while holding it with their front legs and then separating different parts of the fish for sequential consumption.[22]