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As a consequence, geneticists described evolution simply as a change in gene frequencies in populations, totally ignoring the fact that evolution consists of the two simultaneous but quite separate phenomena of adaptation and diversification.

  • -- Ernst Mayr 迈尔

结果，遗传学家将进化简单地描述为种群中基因频率的变化，完全忽略了进化由两种同时存在但又截然不同的适应和多样化现象组成的事实。

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Population Fact

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Now it's a fully realized production but for the fact that we're holding our scripts in our hand and some of us used them, and some of us didn't and you have to by union rules hold the script. You don't have to use them but you gotta hold them.

现在这是一个完全实现的产品，但事实上，我们手里拿着我们的脚本，有些人用过，有些人没用过，根据工会规则，你必须拿着脚本。你不需要使用它们，但你必须抓住它们。

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We are told that the first part of the process is to select the very smallest seeds from the smallest plants, which is not at all unlikely, but I cannot speak to the fact from my own observation.

我们被告知，这一过程的第一部分是从最小的植物中选择最小的种子，这并非完全不可能，但我不能从我自己的观察中说出这个事实。

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I have just joined the Board of the Population Institute because I am convinced that early stabilization of the world's population is important for the attainment of this objective.

我刚刚加入人口研究所的理事会，因为我相信，早日稳定世界人口对实现这一目标是重要的。

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The middle class, in the white population, encompasses a wide swath.

在白人人口中，中产阶级的范围很广。

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