科研人员近期发现了一种新的海洋哺乳动物种类—— “Ontocetus posti”，它的摄食方式与现代海象有着惊人的相似性，这体现了进化过程中的趋同现象。

The fossil of a new species of the extinct genus Ontocetus was discovered in the Lower Pleistocene deposits in the North Atlantic by a team of paleontologists led by Mathieu Boisville of the ...

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