They are light brown in color, with darker undersides and flippers.
Pups are much darker at birth.
Males may reach weights in excess of 1,700 pounds and have enlarged necks and noticeable manes. Females are much smaller, averaging about 570 pounds. Sea lions are at home both on land and at sea. They use their long front flippers for propulsion and their hind flippers for steering under water. Habitats and Habits Steller sea lions are highly gregarious on land and use the same sites for breeding, pupping, and resting year after year.