In Costa Rica, for example, the two most closely related species differ in color: One species is white and the other is yellow.

例如在哥斯达黎加，两种种群最接近的蝴蝶在颜色上存在差异：一种是白色，而另一种是黄色。

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For instance, in Costa Rica, the two most closely related species are white or yellow, which prefer to mate with those of their own color.

举例来说，在哥斯达黎加，两种亲缘关系最近的蛱蝶翅膀颜色是白色或者黄色，它们会根据颜色的不同“物以类聚”，进行配对。

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Heliconius butterflies display incredible color pattern variation across Central and South America, with closely related species usually sporting different colors.

从中美洲到南美洲的区域里，邮差蝴蝶展示着令人难以置信的颜色形式的变化，越是关系亲密的种群其颜色的差别越大。

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Studies show that the virus is closely related to one found in some species of bats.

BBC: Fifth coronavirus death reported

The structures of proteins with similar functions in distantly related species are so closely alike that they could not be the determinants of their different developments.

ECONOMIST: Genetic science

By studying more than 31, 000 bits of the genome and measuring how closely humans are related to chimpanzees in different places, the scientists were able to study how quickly the species became different from each other.

ECONOMIST: Humans could have interbred with chimpanzees