邓巴发现，人类大脑的进化方式使我们只能真正关注到特定数量的人。

Dunbar has found that the human brain has evolved in a way that means we can only give real attention to a particular number of people.

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首先，它提供了关于人类进化方式的重要信息——仅从出土文物中很难获得这些信息。

Firstly, it provides vital information about the way that people evolved—information not always easily obtainable from excavated artefacts alone.

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因此人类大脑的进化方式是通过胃。

The evolutionary way to man's brain was, as a result, through his stomach.

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Along these lines, the evolutionary biologist Richard Dawkins took the general step of suggesting that animals are the vehicles through which genes exploit to reproduce.

按此种方法，进化论生物学家理查德·道金斯,采取常规方式建议到动物是工具,可被用于繁衍基因。

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