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1·Wildlife like polar bears and walruses that depend on sea ice to live is also in danger.

像北极熊和海象这样依靠海冰生存的野生动物也处于危险之中。

2·Each spring, thousands of walruses return to the Walrus Islands in northern Bristol Bay to feed, rest, and sometimes die.

每年春天，成千上万只海象返回到布里斯托尔湾北部的海象群岛觅食、休憩、有时死亡。

3·Moreover, walruses and seals drive themselves through the water with thrusts of their hind flippers, but sea lions use their front flippers.

此外，海象和海豹用它们的后鳍推动自己在水中运动，而海狮用它们的前鳍。

4·Biologists have long maintained that two groups of pinnipeds, sea lions and walruses, are descended from response to similar environmental pressures.

生物学家们长期认为，两类鳍脚亚目动物，即海狮和海象，都是从一种陆地上的类似于熊的动物繁衍而来的。

5·Walruses are known for their.... - tusks.

而海象以其。-以其长牙而闻名。

6·Walruses have enormous appetites and hunt for food almost constantly.

海象食欲极大，几乎一直在猎取食物。

7·Several thousand walruses are on the beach, packed shoulder to shoulder.

数千海象伏在海岸上，摩肩擦踵。

8·Two Atlantic walruses snuggle on an ice floe near Igloolik , Nunavut, Canada.

加拿大努勒维特伊格卢利克附近，两头大西洋海象在浮冰上相互偎依。

9·Female walruses also take to the ice to give birth, and to care for their young.

雌性的海象通常还会在冰块上产子和照顾幼仔。

10·The Sea also has a large amount of ice, where walruses and polar bears can rest.

而且，这片海洋有大量的冰块可供海象和北极熊栖息。