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The end of a long Scandinavian winter is a desperate time.
斯堪的納維亞漫長的冬天結束之際極其難熬。
But the promise of change is in the air.
不過，變化的訊息在空中彌漫。
The sea has been frozen for six months, its surface is solid as the land.
大海冰凍了六個月了，海面猶如陸地般結實。
Now the seascape is breaking up.
現在海面上的冰開始分裂。
And for creatures accustomed to life on the ice, the world is disintegrating.
對于已經適應冰面生活的生物來說，世界正在瓦解。
The polar bear has kept up with the retreating ice pack so far.
眼下，浮冰群退到哪里，北極熊就跟到哪里。
But its hunting grounds are melting fast.
但是它的獵食場地在迅速融化。
Its favorite prey, ringed seals and bearded seals, are heading north with the ice.
環斑海豹和髯海豹是北極熊最喜歡的獵物，它們都隨著浮冰群在向北方行進。
Soon, they will be beyond its reach.
很快就會在北極熊的眼前消失。
Stranded on Greenland by retreating ice, the polar bear faces a summer of hardship and deprivation.
這頭北極熊跟隨浮冰群退到格陵蘭卻就此受困，它將面臨一個艱難而匱乏的夏季。
A window of opportunity may be closing for the polar bear, but for most, spring is a time of plenty.
機會之窗也許對北極熊關閉，然而對大多數生物來說，春季是富足時光。
Little Auks explode on Greenland's west coast.
大量的侏海雀活躍在格陵蘭西海岸。
They have spent the winter along the edge of pack ice in the northwest Atlantic.
它們在大西洋西北部的浮冰群邊沿度過冬天。
But in spring, some 30 million of them are drawn to Greenland's shores.
而春季有三千萬只侏海雀來到格陵蘭海邊。
That's four fifths of all the Little Auks on earth.
占全球侏海雀的五分之四。
They come here to feed in the waters off shore, and to nest on the cliffs.
它們在近海區覓食在懸崖上筑巢。
These little birds live truly on the edge, living effortlessly between land and the sea.
這些小鳥名符其實地生活在邊緣，在陸地和海洋之間輕松地生活。
Little Auks form life-long pairs.
侏海雀的配偶是終身的。
How the birds find their mates amongst the millions is a mystery.
它們如何在數千萬的同類中找到對方仍是個迷。
