The southern elephant seal is a mammal of the elephant seal family. The male beast is 6.5 meters long and weighs 4000 kilograms. The female is slightly smaller, 3.5 meters long and weighs 1000 kilograms. The reproductive male is about four times as large as the female. The body is spindle-shaped, very thick and fat, but the body is soft and can be bent into a U-shape towards the back. The male has a long cockscomb-shaped nose that swells when excited or angry. The body color is silver gray, the old beast is pale brown and yellowish, into a filthy tone, the dorsal side is deeper than the ventral side. The incisors are small and the male canines are large.

The southern elephant seal is a mammal belonging to the family of seals and the genus of elephant seals. The male animal is 6.5 meters long and weighs 4000 kilograms. The female is slightly smaller, with a body length of 3.5 meters and a weight of 1000 kilograms. Male reproductive animals are about four times larger than females. The body is spindle shaped, very thick and fat, but the body is soft and can be bent into a U-shape towards the back. The male animal's nose is a long cockscomb, which swells when excited or angry. The body color is silver gray, with the old beast being light brown and pale yellow, forming a dirty color tone, and the back side is darker than the belly side. Small incisors, large canine teeth for male animals.