Definition
Sea lions are marine mammals distinguished by their loud barks, external ear flaps, and ability to 'walk' on land. They are larger than fur seals and more streamlined. These social animals live in colonies and are often seen performing tricks in zoos and aquariums. They are opportunistic eaters, preying on fish, squid, and crustaceans. Think of them as the extroverts of the sea, always making noise and putting on a show. They are the aquatic equivalents of a popular theatre kid.