一份相关报道关注到了牛随时间发生的基因转变。

A related report looked at genetic changes in cattle over time.

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塔特萨尔博士认为，转变到人类的飞跃产生已经很突然，或许由于几个重要的基因变化。 这就是为什么这个转变在化石记录里很难找到。

Dr. Tattersall believes the leap to humans may have been brought about very suddenly, perhaps by a few critical genetic changes, which is why the transition is so hard to trace in the fossil record.

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我们已经将自然选择的概念从头进行转变。自然并不是选择待选基因的唯一力量-人类也能对基因进行选择。

We've turned the notion of natural selection on its head. Nature isn't the only force that picks the genes that stick around - we're doing it too.

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