The Sea Lion is considered to be a pinniped which means that it features a winged foot. They are also classified as marine mammals.
The males are called bulls and the females are called cows. Their offspring are called pups. A large group of Sea Lions is referred to as a colony. There can be thousands of them that reside within a colony, with many subgroups inside of it. They love to live in very close groups even though they often have plenty of room to spread out more.