90% of all the world's ice is found here地球上百分之九十的冰都在这里
This frozen world is largely deserted这个冰雪世界是广袤无垠的荒芜
until the start of spring一直到春天的到来
Adelie penguins in a hurry阿德利企鹅正匆忙地赶路
The clock is ticking时间紧迫
Instead of waiting for the summer melt等不及夏天的冰雪消融
the new arrivals hasten south over the frozen sea新来者便急切地从封冻的海面上 向南极大陆赶来
They have come here to breed它们是要来这里繁殖后代
but polar summers are so short但极地的夏天非常短暂
they must be in position before the thaw starts所以它们必须在冰层解冻前就要赶到
As the sea ice retreats随着海上冰线向南极腹地融退
life can journey farther south动物们也开始往南极大陆迁移
Antarctic waters are so rich南极水域食物非常丰富
that visitors come from far and wide to harvest them所以会有很多动物 从四面八方远道而来
Vast numbers of chinstrap penguins come ashore to breed纹颊企鹅也在这里的海岸上繁殖
No bird will lay their eggs directly onto ice没有鸟类会把蛋直接产到冰面上
so bare rock is a vital commodity所以裸露的岩石 是宝贵的繁殖地
The best patches are worth the climb因此最好的一片岩石 再费力也值得爬上去