The DNA test results of "X Girl" show that she is neither an early human nor a caveman, but a previously unknown human population. In the last ice age, they lived on the earth with modern people, who made continuous progress in making stone tools, jewelry and artistic creation. This discovery means that there are at least three distinct members in the human lineage, namely, modern people, Denisova people and Neanderthals. It is reported that the bone fossils found in Siberian caves come from a little girl nicknamed "X girl". According to the test results released at the beginning of 20 10, she belongs to a brand-new human population. At present, comprehensive DNA analysis has confirmed her position in the increasingly chaotic human pedigree.
Although Denisova people are homologous to Neanderthals and Homo sapiens, there are some differences between them, and their tooth structure is closer to their ancestor Heidelberg people than the latter two. The nuclear genes of Denisova people show that they are separated from Nepalis and Homo sapiens by 654.38+0 million years, but their maternal lineage shows that they are sisters of Nepalis, so their paternal line is likely to come from pioneers. In fact, this race is no stranger to China people. The so-called "early homo sapiens" cultures, such as Jinniushan culture 280,000 years ago, Dali culture 200,000 years ago, Maba culture/kloc-0.3 million years ago and Xu Jiayao culture 6.5438+0 million years ago, were all created by them, but they were not named in time. The remains of Denisova people are made up of many stone balls. They may be the first people to use slungshot ropes. According to the fossil evidence, we can roughly clarify the evolutionary history of Denisova people. 300,000 years ago, the Denisova people separated from the original Nigerians and arrived in Jinniu Mountain in Liaoning Province 280,000 years ago. After 80,000 years in struggle for existence, they wiped out the native Homo erectus and became the only human resident in Northeast Asia. After that, they migrated repeatedly on the land of China, and finally disappeared in the Siberian plain 20,000-30,000 years ago. The death of Denisova people may be the same as that of their cousin Neanderthals, which was caused by their decline in competition with Homo sapiens. As early as130,000 years ago, the Denisova people who migrated to Maba, Guangdong Province had already had contact with the first group of old homo sapiens who went out of Africa. At that time, Homo sapiens had not mastered the advanced technology in the future, so they had no advantage over the Danes and were easily suppressed by the Danes. However, 50,000 years ago, when the Denisovans returned to the north of China, the second group of more advanced Homo sapiens (ancient Asians) came to China, and with more advanced tools, the Denisovans who had become "indigenous" were defeated one after another. Under the pressure of Homo sapiens, Denisova people were forced to migrate to Siberia and eventually died there.