Homo erectus originated in Africa about 2 million years ago and spread to Eurasia; modern humans appeared about 200,000 years ago  Fossils of these two species are distributed in China  For example, the Peking Man unearthed from the ancient strata in Zhoukoudian, Beijing belonged to Homo erectus; the Mountain caveman in the strata a few years ago belonged to modern humans  Research on contemporary Chinese populations has found that the paternally inherited Y chromosomes all originated from Africa, and the origin date was 8
9 10,000 to 35,000 years ago; maternally inherited mitochondrial DNA originates from Africa, and the origin time is within 100,000 years; no genetic components of Homo erectus have been detected
Descendants of Peking Man may be extinct, the ancestors of contemporary Chinese came to Asia from Africa about 100,000 years ago