the greatest concentration to be found anywhere on Earth. 到处都是世界上最伟大的聚集
The giant shearwater flocks hunt the krill swarms 庞大的水雉鸟群大量捕食磷虾
With the retreating ice, rough weather and ferocious currents stir up these shallow seas. 随着冰雪的消退,暴烈的天气 和汹涌的洋流把这片浅海搅得天翻地覆
Add sunshine and the mix is spectacularly productive. 再加上阳光,这种组合的产生了大量的养分
After two months and thousands of miles, they're entering the polar seas both in the north and the south. 历时2个月,数千英里的跋涉 它们进入了两极的极地海洋
In the far north, winter is over at last 在遥远的北方 寒冬终于过去
The Aleutian Island chain running west from Alaska is the gateway to the Bearing Sea. 阿拉斯加(美国)西部的 阿留申群岛是通向白令海的大门
Two out of three penguins survive the seal attacks and succeed in reaching their ever hungry chicks. 有三分之二的企鹅能在海狗的攻击下逃生 顺利到达永远吃不饱的小企鹅身边