最近在中国南方地区发现的人类颚骨化石,使我们对我们的祖先走出非洲的时间产生质疑。科学家表示,古生物学家于2007年在中国智人洞发掘的这块下颚骨化石具有非常明显的现代人特征:突出的下颚。但是这些化石的年代,比以前在中国发现的最古老的智人化石早6万年。圣路易斯华盛顿大学人类学家、这篇论文的联合作者埃里 The recent discovery of human jawbone fossils in southern China has challenged the timing of our ancestry’s departure from Africa. Scientists say the jaw bone fossil found by paleontologists in China’s Homo sapiens cave in 2007 has a very distinct modern character: a prominent jaw. But the age of these fossils is 60,000 years earlier than the oldest Homo sapiens fossils ever discovered in China. Anthropologist at Washington University in St. Louis, co-author of this paper