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 south polar skua is a formidable opportunist. 南极贼鸥是可怕的机会主义者
The eerie silence here is only broken in spring. 这里静得可怕 只有到春天才会热闹起来
so bare rock is a vital commodity. 于是裸岩就成了最重要的繁殖地
This frozen world is largely deserted 在这个冰封的世界里大部分地方都死气沉沉
the continent of Antarctica is as large as the United States of America. 面积相当于一个美国
Ninety per cent of all the world's ice is found here. 这里的冰占全世界的90%
Nowhere else on Earth is seasonal change so extreme. 两极地区的季节变化非常极端
And all life here is governed by that. 这里的一切生命都受其影响