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科学60秒-科学美 20236月合集

DNA evidence shows that many of the ratite lineages split well after Gondwana broke up.

DNA证据显示,许多平胸类鸟系在冈瓦纳大陆分裂后分化得很好。

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科学60秒-科学美 20236月合集

It looks like flightlessness evolved among the ratites at least six times independently, which is very surprising.

看起平胸类鸟群行是至少独立进化六次的结果,这是非常令惊讶的。

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科学快报-科学美Science Quickly, from SCIENTIFIC AMERICAN

But the DNA data fouled up this hypothesis DNA evidence shows that many of the ratite lineages split well after Gondwana broke up.

但 DNA 数据推翻了这一假设 DNA 证据表明,许多平胸岩谱系在冈瓦纳大陆分裂后分裂得很好。

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PBS地球-动物趣闻

One of these lineages was the paleognathes, which today include ratites like ostriches and emus, as well as weird South American birds called tinamous.

这些血统之一是古颌类,今天包括鸵鸟和鸸鹋等平胸动物,以及南美洲奇怪的鸟类, 称为 tinamous。

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