The question is to explain the presence of hominids in the small stork’s box, similar to the species Homo ancient, capable of making such a complex tool. Could it be that some of the stone tools found at Nesher Ramla had been left behind by Homo sapiens so that their ancient and distant cousins could figure out how to use and manufacture them?
Father. Zaidner believes that this hypothesis cannot be true. First, he showed that skull fragments were excavated at the bottom of the branch, more than 7 meters deep. This arrangement suggests that the hominid Nesher Ramla had arrived in the region long beforehomo sapiens. More importantly, he believed that Levallois’ release did not come from the Middle East, but from Africa. Some of the tools found there were probably made by ancient species, not by homo sapiens. Therefore it is very possible thathomo sapiens learned this pruning technique from an older hominid.
According to this theory, more primitive and more modern species would interact Alison Brooks, an archaeologist at George Washington University, who was not involved in the new study.
“The complexity of this technique is difficult to master without extensive training, ideally learned through verbal and visual instruction,” he says. Brooks. He also believes that this technology originated in Africa.
Father. Zaidner agrees. He believed that hominids who learned this technique would migrate to other groups. They would then spread this knowledge through demonstrations and spread it throughout Europe and beyond.
ATTENTION: NO NEW TYPE
When the researchers analyzed skull features to find out where these hominids were in the lineage, they were confused. The sample doesn’t seem to match the speciesHomo in particular, not even on Homo heidelbergensis, a “catch everything” species.
Some scientists might then be tempted to claim that Nesher Ramla’s skull belonged to a new species, Hershkovitz said. However, he believed that it would be useless.
“We believe that it is incorrect, if inappropriate, to claim that such an isolated sample is a new species. It certainly has a unique combination of features. However, he determined that this phenomenon was common in Middle Pleistocene hominids. ‘In our eyes, his presence will be of a different kind, not a different kind. “
The unstable climate during the Middle Pleistocene, which associated periods of extreme cold with milder temperatures, pushed populations in Europe into concentration and expansion. As the hominid group became smaller and isolated due to these difficult conditions, their bodies and cultures developed according to their own characteristics. Then, as climatic conditions improved, the population would expand, meet other hominid groups, and mix. In this way, their cultures and genes can be exchanged. According to Hershkovitz and colleagues, this creates a mosaic of traits observed in hominid populations dating from the Middle Pleistocene.
Scientists believe that each of the groups holding the skulls unearthed at Nesher Ramla seems to play an important role in this story. Since conditions at that time were more stable in the Middle East than in the north, the population in that region was naturally larger. They may have repopulated the northern region during the retreat of the ice sheet.
‘We believe that individuals Homo by Nesher Ramla was the origin of many of the groups that later emerged in Europe”, maintain Rachel Sarigo, a health anthropologist at Tel Aviv University and study author. Nesher Ramla’s teeth, similar to those of Neanderthals, may be evidence of this.
General An analysis of the hominid Nesher Ramla and his kinship is certainly impossible, I regret. Maybe. “In outdoor areas where the environment is very hot, DNA breaks down much faster than in caves or in cooler areas. “
The dating and location of the fossils remains interesting. The well-preserved features help explain other finds in the region, which have so far been difficult to categorize. For example, hominid teeth were found in the Qesem Cave, about 32 km north. It is very similar to Nesher Ramla, but also much older. Estimated 400,000 years ago.
If this suggests that Nesher Ramla-type hominids existed at that time, they might as well have passed on at least some of their genes to a mysterious group found at Sima de los Huesos in northern Spain. They also had very similar teeth, Herskovitz said, which must have been from pre-Neanderthal times.
A genetic analysis Sima de los Huesos’ feet reveal an inexplicable connection to the Denisovan Men in Siberia. Perhaps they inherited some common traits from the Nesher Ramla population. It is possible that he mingled with the ancestors of the Denisovans when they crossed the Middle East to reach Asia. “We believe that the first members of the Nesher Ramla group would have started migrating to Europe 400,000 years ago,” Hershkovitz said.
Michael Petraglia of the Max-Planck Institute for the Science of Human History admits that the findings are consistent with the idea that “we can no longer see our evolution according to a simple one-line model.” There is a lot of expansion, concentration, and extinction. “
Shara Bailey, a paleoanthropologist at New York University, agrees that the fossils unearthed at Nesher Ramlar “display a combination of ancient and distinctive Neanderthal characteristics. However, he added that “it is always difficult to know whether isolated fossils represent what a population looked like”.
Regardless, he concludes that ‘all of us, at least most of us, are beginning to accept that human evolution during the Middle Pleistocene was much more confusing. This is [nouvelle] vision, which has changed significantly [qui prévalait] a few years ago “.
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