All the inhabitants of the Great Plains are exposed to the elements. 所有生活在草原上的动物 都必须面对大自然残酷的一面
Nearly all will give birth within the next 10 days. 在接下来的十天之内 几乎所有的小家伙都会呱呱坠地
At the heart of all that happens here is a single living thing. 这一切最终都依赖于一种生命体的存在
This miraculous plant covers a quarter of all the lands of the Earth. 这种神奇的植物覆盖了地球上四分之一的土地
but the father needs persuading to surrender the chick he has been caring for all winter. 但整个冬天都在照顾小企鹅的爸爸倒是有点舍不得
He has been saving it all winter. 这口食物已经储存了整整一个冬天
Their appalling trials have all been for this. 它们所经受的可怕考验就是为了这一刻
Sandhill cranes have travelled all the way from New Mexico. 沙丘鹤则从新墨西哥州一路赶到这里
but the ice that has supported him all winter is rapidly disintegrating. 但是在冬天能够支撑它的冰面现在正迅速地解体
but it will take all her mothering skills to keep her cubs safe 但是这个冰雪世界危机四伏