Natural selection is the cornerstone principle of evolution.

物竞天论的基础原则。

Natural selection rewarded our ancestors for collaboration, and for forming connections with each other.

在物竞天中，我们的祖先互相合作，并且建立彼此的关系而存活下来。

Natural selection hits on a good design.

自然选的图案都最好的。

We've created the next chapter in natural selection.

我们创造了自然选新的篇章。

This means that we are the result of natural selection.

这意味着我们自然选的结果。

The one we know best is Darwinian natural selection.

其中最为人知的理论之一就 达尔文的自然选论。

But the second force, natural selection, is definitely not random.

但第二种力量——自然选——绝对不随机的。

Natural selection might be expected to favour the progeny of men who enjoy bringing them up.

自然选也许更偏爱那些乐于带孩子男人的后代。

Charles Darwin is famous for describing evolution by natural selection.

查尔斯·达尔文因通过自然选描述而闻名。

That's because there are other aspects of evolution besides natural selection.

因为除了自然选，依然有其的因素。

If natural selection were to work, some alternative, unconsidered mechanism was required.

如果自然选要起作用的话，就得需要某种尚未发现的替代机制。

To answer this question, it helps to understand natural selection.

回答了这个问题，有助于理解自然选。

This is a form of sexual selection and is subject to natural selection.

这一种性选的形式，受自然选的影响。

So that's a lot of variation on which natural selection can act.

因此，自然选可以发挥作用的变异有很多。

Think of it as evolution not by natural selection, but evolution by design.

请把这件事情想像成， 而非物竞天，只它透过设计来。

And that is something natural selection can work with.

这自然选可以做到的。

Prey animals routinely attacked by venomous predators are under powerful pressure from natural selection.

经常被有毒捕食者袭击的猎物都承受着来自自然选的巨大压力。

It causes natural selection, which causes the prey species to become faster, stronger, quicker.

这推动了自然选，使猎物物种变得更快、更强、更敏捷。

In the wild, any individual manifesting them would probably get short shrift from natural selection.

在野外，任何表现出这些特征的个体都可能会受到自然选的冷落。

In doing so, they have brought to robotics the principles of evolution by natural selection.

在此过程中，们把通过自然选来实现的原理引入了机器人科学领域。