“只有一小部分外来物种会在它们的新栖息地引发问题。”田纳西大学生态学和进化生物学教授唐·史密斯说。

"Only a small percentage of alien species cause problems in their new habitats,'' said Don Smith, professor of ecology and evolutionary biology at the University of Tennessee.

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“从本质上说，我非常同意作者的观点。”德国马克斯·普朗克进化人类学研究所的生物学家兼主任斯温特·帕波说。

"Essentially, I could not agree more with the authors," said Svante Paabo, a biologist and director of the Max Planck Institute for Evolutionary Anthropology in Germany.

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生物学中分类思想的问题就是，进化不会像（分类规定）的那样进行。

The problem with categorical thinking in biology is that evolution does not work like that.

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And this is one of the major revolutions in evolutionary biology over the last half century.

这是过去半个世纪,进化生物学的重大进步之一。

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