Now that we know it's common among animals, Range says, scientists need to revise their theories about why it evolved.

兰奇说，既然我们知道这种能力在动物界也很常见，那么科学家们应当修正关于追随视线能力演化的理论。

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I can talk for hours about why it is important to forget about your work while you are resting, but deep down you do not need any convincing.

关于为什么在休息的时候抛开工作是如此的关键，我可以给出一大堆论证，不过实际上，你并不需要什么论证。

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youdao

Why should there be any question about my age?" "Oh,it wasn't a question.

VOA: special.2009.10.11

But I want you guys to think about why it was difficult to do it another way, which is more pedestrian.

但是我希望你们能思考一下,为什么用另一种更普遍的方法来做,反而会比较难呢

耶鲁公开课 - 基础物理课程节选

and so I think I have a really personal story about that of why I think it's really important.

所以我对这方面有着真实的感受，能够解释移民政策的重要性。

美国的移民政策 - SpeakingMax英语口语达人

The inquiry comes as Greater Manchester Police faces questions about why it failed to arrest Shipman earlier.

BBC: Shipman murders inquiry opens

Hopefully I can sway you about why it is a good idea for Google to pursue this path.

FORBES: Why The Idea of a Google Driverless Car is Nonsense

The commission faces embarrassing questions about why it failed to act when the alleged crimes were taking place.

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