The Australian sea lion is a marine mammal native to the southern coast of Australia. They are known for their distinctive appearance, featuring a robust body, short limbs, and a thick layer of blubber. Adult males can weigh up to 300 kilograms, while females are smaller, averaging around 100 kilograms. These sea lions primarily inhabit sandy beaches and rocky shores, where they haul out to rest and breed. Australian sea lions are social animals, often found in groups called colonies. They primarily feed on fish, squid, and crustaceans, using their keen eyesight and whiskers to hunt. Their population is currently classified as vulnerable due to habitat loss and human activities.