According to the first of these theories, each individual has evolved, aided by natural selection, an adaptation to the rhythmic environment.

根据第一个理论，在自然选择的帮助下，每个个体经过进化都适应了这个有规律的环境。

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According to the first of these theories, each individual have evolved, aided by natural selection, an adaptation to the rhythmic environment.

根据第一个理论，在自然选择的帮助下，每个个体都进化出了对有节奏环境的适应。

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Might evolution by natural selection explain complex thought?

通过自然选择的进化可以解释复杂的思维吗？

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The animals on the islands influenced British nature scientist Charles Darwin's ideas about evolution by natural selection.

VOA: special.2009.12.16

But other phenomena that look like diseases are known to be maintained by natural selection.

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Viruses have genes, can reproduce and are subject to the evolutionary pressures imposed by natural selection.

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Those mutations that make a difference to the operations of genes will be affected by natural selection.

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