她赞同这些鱼壳证实了早期现代人类能够完成多任务计划，并且对于他们想要制造的成分的质量进行抽象思维。

She agrees the shells are evidence that these early modern humans could "multitask and think in abstract terms about the qualities of the ingredients that they manipulated."

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例如，我们都知道，16万年以前在埃塞俄比亚就有早期现代人类，其他还有在摩洛哥的，像这样一些人种均有可能是我们祖先中的一部分。

We know, for example, that there were early modern humans in Ethiopia 160, 000 years ago and others in Morocco, and populations like those may also have contributed to our ancestry.

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南方古猿是早期原始人类的一部分，被认为是祖先人种，现代人就由此而来。

Australopithecus was a group of early hominids that is reckoned to be the ancestral genus of Homo, to which modern man belongs.

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