Fur seals are marine mammals belonging to the family Otariidae, which also includes sea lions. They are characterized by their external ear flaps and long front flippers, which they use for swimming. Fur seals have a thick layer of fur that helps insulate them in cold waters, and they are found primarily in the Southern Hemisphere, particularly around the Antarctic and Subantarctic islands. These animals are social and often gather in large colonies on rocky shores or beaches. Fur seals primarily feed on fish and squid, using their agility in the water to catch prey. They are known for their playful behavior and can often be seen leaping and diving in the ocean.