Polar bears , like walruses and harp seals , depend on ice to rear their young .

北极熊，就像海象和格陵兰海豹一样，都依靠冰雪来抚养后代。

Federal scientists say this massive move to shore by walruses is unusual in the united states .

联邦科学家表示，在美国海象大规模迁往海岸是不正常现象。

Many of the men spend weeks away from home hunting seals , narwhal , walruses , whales and other mammals .

许多男性离家数周捕猎海豹、独角鲸、海象、鲸鱼和其他哺乳动物。

Indeed , most familiar sea creatures , from albatrosses to walruses , from seals to oysters , have suffered huge losses .

实际上，大部分我们熟悉的海洋生物，从信天翁到海象，从海豹到牡蛎，都损失惨重。

The plans recommended contacting dead experts and set out provisions for dealing with oil-soaked walruses ( of which there are plenty in the arctic but none in the gulf ) .

这些计划建议与已故专家联系，并为被石油浸透的海象（海象多见于北极，墨西哥湾并没有该动物）设置条款。