猫不捕食海豹。
Polar bears are threatened because they use sea ice as a platform from which to hunt seals. But a warming climate brings many problems for the Inuit.
气候变暖让北极熊受到威胁是因为他们需要冰海来捕捉海豹，但是一个暖和的气候对因纽特人会带来很多麻烦。
Sea ice melts in summer. Without ice for a platform they cannot hunt seals, their main prey-and so they fast, eating almost nothing until ice forms in autumn.
夏季，海上冰雪消融，没有冰面作为平台，它们就无法捕食它们最主要的食物来源-海豹，所以，它们几乎不吃什么东西，禁食直到秋季冰块再次成型。
But the melting of sea ice as a result of rising global temperatures has made it more difficult for polar bears to hunt seals at sea, confining the bears to land.
但由于全球变暖，浮冰融化，在海上猎食也越来越困难，北极熊的捕猎场所也不得不转移到陆地上。
Sleeping deep underwater helps these seals stay safe from animals that hunt them near the surface.
沉睡在水下可以帮助这些海豹远离在水面附近捕猎它们的动物。
His grandparents travelled less than a mile to hunt; he must go more than 60 miles because the sea ice disappears earlier - and with it the seals.
他的祖父母去打猎，走不到一英里；而他必须走六十多英里，因为早期的海冰消失了——海豹也随着消失。
This year, because of the higher natural mortality among pups in the south, Canada's Department of Fisheries has reduced the quota for the hunt to 270,000 seals, from 335,000 last year.
今年由于南部的小海豹自然死亡率较高，加拿大渔业部门已将猎杀海豹配额从去年的335000只减少到270000只。
This year, because of the higher natural mortality among pups in the south, Canada's Department of Fisheries has reduced the quota for the hunt to 270, 000 seals, from 335, 000 last year.
今年由于南部的小海豹自然死亡率较高，加拿大渔业部门已将猎杀海豹配额从去年的335000只减少到270000只。
Polar bears, which hunt for seals along the ice’s edge, and walruses, which fish there, will both be hard-hit.
北极熊，他们沿着冰层边缘捕猎海豹，还有在那里捕鱼的海象都将受到严重的影响。
Wildlife will also suffer. Polar bears, which hunt for seals along the ice’s edge, and walruses, which fish there, will both be hard-hit.
沿冰层边缘捕食海豹的北极熊和在那里捕鱼的海象都将受到严重影响。
In the past three years, one million seals have been killed in the commercial hunt in eastern Canada.
在过去3年里，总共已有100万只生活在加拿大东部地区的海豹死于商业捕猎活动中。
Leopard seal are the only known seals to regularly hunt warm-blooded prey. But during the three weeks I swam with them, they often revealed a playful side.
我们知道海豹是唯一的定期捕猎温血动物的动物但在三个星期里，我与他们游泳他们往往透出俏皮的一面。
Polar bears, which hunt for seals along the ice's edge, and walruses, which fish there, will both be hard-hit.
沿着浮冰边缘狩猎海豹的北极熊，和在此捕鱼的海象，都将受到沉重打击。
The point of this study, just published in the Journal of Experimental Biology, is to understand better how seals hunt fish in the inky depths of the ocean.
这项研究刚刚被发表在《美国实验生物学会联合会会志》中，它使我们更好地理解海豹是如何在漆黑的深海中捕鱼的。
The point of this study, just published in the Journal of Experimental Biology, is to understand better how seals hunt fish in the inky depths of the ocean.
这项研究刚刚被发表在《美国实验生物学会联合会会志》中，它使我们更好地理解海豹是如何在漆黑的深海中捕鱼的。
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