Funny little seal, in the water!

The seal's body is round and spindle-shaped, mottled in color, with sparse hair and thick fat under the skin, making it look fat. Both feet are constantly stretched back, like a diver's fins. When swimming, your feet sway side to side in the water, pushing your body forward quickly. From the seal's head, it looks like a domestic dog, so it is called a seal in many places.