The California sea lion is a marine mammal found along the western coast of North America, primarily from British Columbia to Mexico. They are known for their external ear flaps, long front flippers, and playful behavior. Adult males can weigh up to 800 pounds, while females are smaller, averaging around 220 pounds. Their fur is short and varies in color from light brown to dark brown. California sea lions are social animals, often seen in large groups on beaches and rocky shores. They primarily feed on fish and squid, using their keen eyesight to hunt underwater. These sea lions are also known for their vocalizations, which include barks and growls, especially during breeding season.