Every winter, emperor penguins leave the comfort of their ocean home 帝企鹅每年冬天便离开它们安逸的海洋家园
The greatest seasonal change on our planet is underway. 我们这个行星上最显著的季节变化正在发生
The ice grows at an extraordinary rate, 冰盖的面积以非凡的速度扩大
and the whales will soon be forced north as winter returns. 很快冬季又到了 这些鲸鱼将不得不前往北方
The krill becomes concentrated as the spiralling net of bubbles draws inwards. 螺旋型的气泡网逐渐收紧,把磷虾聚在一起
The team of whales work round the clock for the boom is short-lived. 时光短暂,座头鲸昼夜不停捕食
The whales are harvesting krill, 这些鲸现在正美美地享受着磷虾大餐
shrimp-like creatures that begin to swarm here as soon as the ice retreats. 冰层一融化各种各样的虾就会聚集在这里