Walruses can reach 5 meters in length and weigh 1.5 tons. The most striking thing is that a pair of huge tusks, both male and female, are very big, which is different from other pteropods. These tusks are actually canine teeth that grow from the upper jaw, like ivory, and grow all their lives. This tooth is an indispensable tool or weapon when digging food, climbing rocks or attacking enemies. Walruses have long forelegs, accounting for about a quarter of their body length, and their hind feet can bend forward, so they walk on land. Ears are just slightly thicker skin without cartilage support (similar to seals). The huge body (second only to the elephant-nosed seal) seems to be heavy when sleeping late on the ice or on the coast all day long, but it can move quickly in the water. The delivery was carried out in the sea. In order to get their tusks, grease and meat, humans have killed a lot, and the existing number is very small.