As soon as couples arrive, they must stake a claim to a nesting patch. 一对雪雁来了之后就必须取得自己的筑巢地
just as their fathers did in the depths of winter. 就像寒冬时节它们的爸爸做的那样
as the poor chick is trampled to death. 可怜的小企鹅有可能被活活压死
As they approach, waves of excitement ripple through the huddle. 随着它们脚步的临近, 雄企鹅们开始表现出抑制不住的兴奋
Using the fog as cover, the bear approaches the herd. 在海雾的掩护下,北极熊向海象群靠近
As the ice disappears, seabirds return to the high Arctic. 冰融化的时候 海鸟返回到北冰洋
Each year, as the climate warms, the Arctic holds less ice. 每年的天气变暖时 北冰洋的冰就会减少
The seascape is in constant flux as broken ice is moved on by winds and currents. 海洋在不断地变迁, 破裂的冰块在风和洋流的作用下不停地移动着
As the sun's influence increases, the sea ice seems to take on a life of its own. 随着太阳的威力逐渐增强, 海冰仿佛有了自己的生命