As the sun's influence increases, the sea ice seems to take on a life of its own. 随着太阳的威力逐渐增强, 海冰仿佛有了自己的生命
and its rays strike the Arctic more directly. 阳光逐渐直射到北极来
It must get to grips with its new ice world, 它们必须适应这个冰雪世界
The calf must stay close to its mother to avoid getting lost in the sudden blizzard. 小牛必须紧跟着母亲 才能避免在突如其来的暴风雪中迷路
as each penguin works its way towards the warmer interior. 每只企鹅都要变换位置以进入更温暖的内部
As the days shorten, its warmth is withdrawn from the continent. 随着白昼的缩短,南极大陆变得越来越冷
But producing the egg has taken its toll. 但体力也在产蛋的过程中消耗殆尽
Its long arm extends further north than the rest of the continent, so spring arrives here first. 这里与南极洲的其它地方相比更靠近北边, 所以春天先来到这里
An adult locust eats its entire body weight every day, 成虫每天的进食量相当于自己的体重
and the pleats on its trunk enable it to expand rapidly. 茎上的皱褶使之能迅速膨胀