advancing two and a half miles a day. 一天扩大2.5英里
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
Now they turn, blasting air from their blowholes, and ascend towards their prey. 现在座头鲸转身 利用呼吸孔吐气 喷向猎物
and nearly all of that exposed rock is found in one place, 几乎所有的裸岩都集中在同一个地方
The snow petrels have arrived and are courting. 雪海燕来了 在这里求偶
Antarctic waters are so rich that visitors come from far and wide to harvest them. 南极富饶的海水吸引着千里之外的客人来觅食
It causes the ice to advance and retreat every year. 使得冰盖面积每年都在扩大和缩小
And all life here is governed by that. 这里的一切生命都受其影响
They're the largest and most demanding wildernesses of all. 是最大、最荒凉的无人区