Leopard seals are a type of marine mammal found primarily in the Antarctic region. These creatures are characterized by their long, slender bodies, black-spotted coats, and large heads filled with sharp teeth. Synonyms for leopard seals include sea leopards, Antarctic seals, and fur seals due to their thick fur coats. They are also known for their distinct vocalizations, which sound like a combination of barks, growls, and moans. Despite their fearsome appearance, leopard seals are not typically a threat to humans but have been known to attack and kill penguins. These powerful predators are a vital part of the Antarctic ecosystem, playing an important role in maintaining the balance of marine life.