taxonomy:
Kingdom:Animalia
Phylum:Chordata
Class:Mammalia
Order:Carnivora
Family:Mustelidae
Subfamily:Lutrinae
Genus:Enhydra
Species:E. lutris
Scientists believe that sea otters descended from fish-eating, otter-like ancestors about five to seven million years ago, during the late Miocene and early Pliocene period.
sea otters are part of weasel family, they have webbed feet , water repellent fur and ears that are close in water. The average weight of an sea otter is 50-70 pounds and are about 4 ft long. life span is 10-20 years in the wild. Female sea otters are smaller than male otters