sea otter
noun
1- an entirely aquatic marine otter of North Pacific coasts, formerly hunted for its dense fur. It is noted for its habit of floating on its back with a stone balanced on the abdomen, in order to crack open bivalve molluscs.海獭。
1.1
- Enhydra lutris, family Mustelidae.拉丁名Enhydra lutris, 鼬科。