Imagine a desert with two pools of water separated by some distance.
试想一片沙漠里只有两个池塘，而且还相隔老远。
It is a strange consequence of the special theory of relativity, and applies to any events that happen that are separated by some distance.
这是奇特相对论的奇怪推论，对于不是发生在同一地方的任何事件都适用。
Imagine a desert with two pools of water separated by some distance. If you're a plant growing next to one of those pools, you can follow one of two different reproductive strategies.
想象一下，在沙漠中有两个相隔一定距离的水池，此时你有两种完全不同的种植策略。
In general, the subpopulations of most species are separated from each other by some measurable distance.
一般来说，大多数物种的亚种群之间都有一定的距离。
In general, the subpopulations of most species are separated from each other by some measurable distance.
一般来说，大多数物种的亚种群之间都有一定的距离。
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