这是因为格陵兰岛大部分地区被大量的冰覆盖着。
That is because most of Greenland is covered with lots of ice.
我们进化出了大量出汗的能力，并且失去了大部分的皮毛。
We evolved the ability to sweat plentifully, and lost most of our fur.
这使得他们能够生产大量的水果、鲜花和树叶，以维持森林中大部分动物的生命。
This allows them to produce massive crops of fruit, flowers and foliage that sustain much of the animal life in the forest.
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