The pink form, says Gentile, should be considered a third species, and is evolutionarily older than the other two species.

金泰尔说，我们应该把粉红色类型看作第三个物种，而且它比其它两个物种更早进化。

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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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Like when populations of the same species are isolated from each other and then develop into two different directions and end up as two distinct species.

例如，当同一物种的种群彼此隔离时，然后就会向着两个不同的方向发展，从而形成两个截然不同的物种。

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At least two other species of goose existed there until people arrived and, presumably, ate them.

ECONOMIST: Feathers are flying in the world of bird classification

Two other species of threatened shark will be voted on later on Monday.

BBC: Cites meeting votes to protect Oceanic whitetip shark

Meanwhile Arctophila superbiens and Arctophila bombiformis, two other hoverfly species, each of which accurately resembles a particular bumblebee species, are restricted in distribution and rare.

ECONOMIST: Insects and mimicry