20万年之久的南部非洲人口与现代桑族人联系在一起,表现出深厚的遗传根基和独特的适应性,重新塑造了对人类起源的理解。 A 200,000-year-old southern African population, linked to modern San people, shows deep genetic roots and unique adaptations, reshaping understanding of human origins.

对南部非洲28个个体的古代DNA进行的一项新研究揭示了近乎孤立地生活了20万年的人口,形成了独特的基因特征,占已知人类基因变异的一半。 A new study of ancient DNA from 28 individuals in southern Africa reveals a population that lived in near isolation for up to 200,000 years, developing a unique genetic profile with half of all known human genetic variation. 这些古代基因组展示了适应严酷环境的适应性, 包括免受阳光照射的保护, 并揭示了其他人类群体所看不到的基因变异。 Found in modern San people, these ancient genomes show adaptations to harsh environments, including protection from sunlight, and reveal genetic variants not seen in other human groups. 这些研究结果发表在《自然》杂志上,对以前关于人类起源的理论提出了挑战,将南部非洲定位为人类演变中的一个关键区域,并强调了长期遗传连续性,尽管后来与北方农民进行了接触。 The findings, published in Nature, challenge previous theories of human origins, positioning southern Africa as a key region in human evolution and highlighting long-term genetic continuity despite later contact with northern farmers.