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
by exploiting the petrels' desperate need for bare rock. 它们知道利用海燕必定寻找裸岩筑巢的弱点
But the skuas have not chanced upon the petrels, they've been waiting for them. 但是贼鸥碰到海燕并非机遇使然, 它们早就等着下手
These birds do not need to go to the ocean for their food. 贼鸥不需要到海洋里捕食
The birds have flown inland for over 300 miles to reach this breeding site. 它们往内陆飞行300英里才来到这里繁衍
Instead of waiting for the summer melt, the new arrivals hasten south over the frozen sea. 还没等到夏季解冻期的来临 这些鸟儿就急急忙忙从冰封的海洋赶到南极
but nothing could have prepared them for the ice world that finally loomed into view. 当冰雪世界真实的出现在他们眼前的时候 他们感到的是无法用语言形容的震撼
for at this stage they're flightless. 在这一阶段 它们还不能飞
Normally it takes four weeks for hoppers to become adults, 一般说来 若虫需要 经过4周才能变成成虫
Eggs that have remained in the ground for 20 years begin to hatch. 在地下埋藏了20年的虫卵开始孵化