Dolphin

Dolphins are cetacean mammals closely related to whales and porpoises. There are almost forty species of dolphins.They are found worldwide, mostly in the shallower seas of the continental shelves and are carnivores, eating mostly fish and squid. The family Delphinidae, the largest in the order Cetacea, evolved relatively recently, about ten million years ago during the Miocene.

Behavior
Dolphins are passive animals, like pigs, sheep, and cows. They attack squids when hungry. They can be tamed with fish, and can be ridden.