The Australian sea lion is a marine mammal found along the western and southern coastlines of Australia. They have thick fur to keep them warm in the water and flippers instead of legs to help them swim. They feed on fish, squid, and other sea creatures. Females give birth to a single pup each year between January and June. The Australian sea lion is endangered due to past overhunting and current threats such as entanglement in fishing nets, shark attacks, boat strikes, and water pollution.