walrus GRE

He is the queer old duck with the knee-length gaiters and walrus mustache.

他穿着高及膝盖皮护腿,留着八字胡,是个古怪伙。

34种已知鳍脚亚目动物当中最大是亚南极南部。

34 kinds of known animal suborder foot fins which is the largest of the southern Subantarctic walrus.

The 23 million-year-old creature was not a direct ancestor of today's seals, sea lions and walruses, a group known collectively as pinnipeds.

这只2300万年生物并不是如今豹、狮和直系祖先，而是来自另一个分支。