Culture has become a force of natural selection, and if it should prove to be a major one, then human evolution may be accelerating as people adapt to pressures of their own creation.

文化已经成为了自然选择的一股力量，而它如果被证明是一股重要力量，那么随着人们适应他们自己的创造物带来的压力，人类进化可能会加快。

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But natural selection is a powerful force, and if the spread of the disease means they have to be used widely, a resistant strain of the virus could easily evolve.

但是自然选择是一种强大的力量，而如果疾病的传播意味着这些药物将被广泛使用的话，一种具有抗药性的病毒毒株可能将轻易地进化出来。

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Much of the new evidence for recent evolution has come from methods that allow the force of natural selection to be assessed across the whole human genome.

从最近发生的进化中我们所获得的大部分新证据所采用的方法都是根据自然选择的力量对全人类基因进行总体评价。

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Mr Gargan's appointment was officially confirmed by a meeting of the force's police and crime panel following his selection last week.

BBC: Nick Gargan confirmed as Avon and Somerset Chief Constable

This hypothesis was the force behind the creation of index funds that were designed to simply replicate the returns of major indexes without intelligent stock selection.

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