Recently, a study of human fossils in Spain showed that the skeleton fossils of Neanderthals and their ancestors were destroyed seasonally, which indicated that early humans may have spent the winter through hibernation.

According to a paper published in Anthropology, a fossil excavated from an ancient collective grave in northern Spain shows that the growth of human bones was interrupted for several months, the Guardian reported on the 20th. Scientists believe that injuries and other signs of injuries in early human skeletal fossils are the same as those in other hibernating animals. This shows that human ancestors "responded to the cold environment and lack of food" by slowing down metabolism and sleeping for months.

The research team found some obvious traces on human skull fossils. Some researchers wrote in the report:? The evidence of the annual cure caused by the intolerance of hibernation among adolescents shows that this population has intermittent puberty every year. ? He explained that due to the lack of sunlight, other signs of vitamin D deficiency are also obvious in bone defects, such as? Signs of rotting fence posts? .

Scientists say that these human bones can be traced back to 400,000 years ago and probably came from early Neanderthals. The area around the site cannot provide enough "fat-rich" food for human ancestors to spend the winter. "Because of the cold weather, hibernation strategy is the only way for them to survive, and they have to spend several months in caves." Scientists also believe that ancient humans are likely to find that "low metabolic state can help them survive in a cold environment with limited food for a long time."

Patrick, a forensic anthropologist at Northumbria University in Newcastle? Lehrndorff? Queenie called this view "very interesting, but it will definitely cause controversy." "There are other explanations for the changes in human bones. These must be fully demonstrated before we draw any realistic conclusions. I don't think it's over yet. " The expert said.

Therefore, through the textual research of early human fossils by experts, the obvious skeletal changes show that human beings have probably experienced hibernation, but after a long evolution and environmental changes, hibernation is no longer needed.