Rewrite the history of fossils: 47 million -22 million years ago the early mating with the caveman

Researchers analyzed a femoral fossil mitochondrial DNA and found it to belong to the caveman branch. According to foreign media reports, at present, scientists through the study and analysis of an ancient human skeletal fossils, can be more step to understand the complex relationship between modern humans and cavemen. This skeletal fossil gene data show that it belongs to 124,000 years ago to the caveman, suggesting that the caveman arrived in Europe after an early human left Africa.

Scientists believe that these early humans in the 47 million -22 million years ago with the caveman mating, compared with the previous scientists that the time range of 300,000 years later. Researchers at the Max Planck Institute for Human History and Sciences and the University of Tübingen analyzed the mitochondrial DNA in this femur fossil.

Mitochondria are human cell energy manufacturing machines that have separate DNA that is isolated from the nucleus DNA. Mitochondria are obtained from the parental inheritance and can therefore be used to track the analysis of maternal lineage and population separation time. Changes in mitochondrial DNA mutations over time can be used to differentiate populations and assess the time spent by two groups of common ancestors.

Previous studies have examined the nuclear DNA of caveman and modern humans, suggesting that the two populations were isolated at about 765-55 million years ago, but the analysis of mitochondrial DNA found that the separation of human and caveman 40 million years ago. Scientists have argued for different views on the early evolution of mankind, suggesting that early humans migrated from Africa before the widespread proliferation of modern humans.

Early human groups may have access to the caveman’s mitochondrial DNA, which is the result of mating between the cavemen living in Europe and ancient humans, and early humans also received small amounts of nuclei DNA. But so far, this is only a theory that requires more data to verify. Southwest Germany Hohlenstein-Stadel cave excavation of the caveman femur fossil is only a casual discovery.

The latest study found that small groups of early humans migrated from Africa to Europe between 470,000 and 22 million years ago, and they mate with cavemen in Europe. The chart shows the time range of this event. The latest discovery of a femur fossil gene data shows that it belongs to the caveman of 124,000 years ago, indicating that the caveman’s ancestors arrived in Europe soon, early humans began to leave Africa to Europe to migrate. Scientists believe that the early human and caveman mating behavior is 47 million -22 million years ago, than before expected late 30 million years. “The skeletal fossil indicates that the caveman ‘s body suffers from a large carnivorous bite, and the skeletal mitochondrial gene data indicates that it belongs to the caveman’ s branch,” said lead author Chris Simpson, director of the study.

Researchers say the skeletal fossil is “HST”, presumably its history is about 12.4 million years, comes from a different branch of the caveman’s blood. HST mitochondrial lineage and all other known caveman descent were separated at least 22 million years ago. The latest study shows that the population of cavemen is larger than previously expected, and the diversity of mitochondria is beyond the previous expectations.

From the perspective of the timeline, this finding suggests that the early migration of small groups of people from Africa to Europe is between 470,000 and 22 million years ago, where they mate with cavemen. Means that it was not until 50,000 years ago that modern humans migrated from Africa to Europe on a large scale. We do not know the number of people in the early days of human migration, but we suspect that the number may be less. Early human migration to Europe is less likely to migrate to the nucleus of the nucleus. But migratory early humans and cavemen mating sexual behavior, enough to completely replace the caveman’s mitochondrial lineage, and ultimately make their mitochondrial lineage very close to modern humans.

Post indicates that if you look at the caveman’s mitochondrial DNA, you will find that they are not completely replaced. The original information of the caveman is continued over time, but the nuclear data of the femoral fossil is an important factor in understanding the relationship between the caveman and the modern human, and it is difficult to find such a skeletal fossil specimen, most of which has been damaged.

At present, the researchers hope to obtain high-quality nuclear data from another population, further verify the correctness of the theory. (Allure)

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