The southern sea otter is 40-50 inches in length, not including its tail. Its tail is 10-14 inches long. Female sea otters weigh about 65 pounds, males weigh about 80. When they stand they are one foot at the shoulder. The fur of the sea otter is reddish brown to black, and it is soft, dense, and fine.
Sea otters spend most of their time in the water.
They enjoy floating lazily on their backs, with their front paws folded over their chests. The southern sea otter has very strong eyes that are good above water and under water. The sea otter keeps his eyes open under water while he is swimming. Both of the front and hind feet are completely webbed. Southern sea otters eat different things.