Commentators, who had been stressing the unexpected genetic closeness between different species, may now have to change their tune.
有些评论人士一直强调称，不同种群之间的基因意想不到地接近，但他们现在可能不得不改口了。
The new methods infer the closeness of any two species' relationship to each other directly from similarities between the species' genetic codes.
新的方法直接从两个物种的遗传密码之间的相似性推断出任何两个物种之间关系的密切程度。
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