2384 篇文章
that animals survive in this man-made world.
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that animals survive in this man-made world. 动物们神奇的生存方式

So it is that grasslands provide a stage
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So it is that grasslands provide a stage 所以草原为地球上

that will last a lifetime.
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that will last a lifetime. 终其一生的旅程

They're testing the legs that will carry them thousands of miles,
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They're testing the legs that will carry them thousands of miles, 他们正在测试自己跋山涉水用的四肢

than that facing these infants.
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than that facing these infants. 正等着这些他们

The only thing that will keep them alive
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The only thing that will keep them alive 唯一能让他们活下去的食物

Now, that grass is not only withered and frozen,
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Now, that grass is not only withered and frozen, 现在青草不仅枯萎结冰

But they themselves can be food for those that can reach them.
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But they themselves can be food for those that can reach them. 但也有动物能探进蚁穴将它们吃掉

It's estimated that over one third of the grass that grows on Earth
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It's estimated that over one third of the grass that grows on Earth 据估计 地球上超过三分之一的草

that virtually no large grass eaters can stomach them.
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that virtually no large grass eaters can stomach them. 几乎没有大型食草动物能消化得了