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1、observed number of species观察到的物种数量In each case, the number of species observed today suggests that these traits have also led to rapid speciation, at a rate previously seen only in African cichlids . 在每一个例子里。

2、今天所观察到的物种个数提示这些特性也已导致快速的物种形成。

3、这种速率以前只在非洲丽鱼科鱼类中被观察到。

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