We might like to think of ourselves as the most "highly evolved" species but, in terms of how many rounds of mutation and selection we've undergone, we are one of the least evolved species.

我们可能会想到人类自身是“进化程度最高的”物种，但就人类已经经历多少轮的变异和选择而言，我们是进化最少的物种之一。

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The better solution is selected out of a sudden mutation, the laws of genetic inheritance and other fine species to adapt to environmental changes.

它通过选择淘汰，突然变异，基因遗传等规律产生适应环境变化的优良物种。

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Radiation from a nearby nova is believed to have sparked rampant mutation among the animal life of Kintan, and has resulted in the Nikto species encompassing a number of distinct sub-races.

据信，一颗邻近新星的辐射，使得金坦星的动物激烈变异，导致尼克托人演生出众多各异的亚种。

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This month a new scientific paper discussed the finding that small nematode worms of a certain species often carry a particular mitochondrial mutation the absence of 786 letters of code from a crucial gene.

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The researchers suggest this kind of mutation could be how the prions cross between species naturally.

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