Octopus, squids, and even shell fish have been found in the stomachs of dead sea lions. Very large groups of sea lions usually gather to catch schools of fish or squid. Southern sea lions sometimes eat penguins too. They have also been found along the Alaskan and Californian coastline. Some sea lions can dive eight hundred feet and can swim as fast as twenty-two m.p.h., but not as fast as dolphins or whales.
Sea lions have a thick layer of fat like the walrus.
The blubber underneath their skin will keep them warm in the cold freezing oceans. If the water is even colder, they will huddle up together like blankets for extra warmth. In the summer time they will find heat on the shores. As they bathe on the shores, if they get too hot they will take a swim. A female sea lion will take care of her own pups for a whole year after they are born.