Neanderthals and Denisovans, who were relatives of two modern human beings, literaryly, who spent thousands of years in the remote Siberia cave, have discovered two new studies.
In the past, this cave was the paradise of a real estate agent; Neanderthals, Denisovans and, perhaps, even today's human beings have lived in history throughout the world, they are the only place, researchers have found.
The cave was so popular that humans (humans, our ancestors and our group of great lifestyles, like sparks) have been in constant heat for more than 300,000 years, researchers found it. [In Photos: Bones from a Denisovan-Neanderthal Hybrid]
Fossils and DNA analysis revealed that the enigmatic Denisovans lived in the cave for at least 200,000 and 50,000 years ago, and Neanderthals lived between 190,000 and 100,000 years.
Neanderthals and Denisovans were not completely blue. In 2018, researchers published a study published in Nature magazine on the part of the girl's father, Neanderthal mom and Denisovan. Two hominid groups had a direct evidence of each other.
Recent research shows that this girl, who had been traced to Denisova Cave for 100,000 years ago, said scientists.
The researchers, Denisova Cave, located on the slopes of Siberia in the Altai Mountains, lasted 40 years.
In 2010, the cave became recognized worldwide as scientists predicted that he found the dead bones and published his genome. In the Denisovans (Van der Neese-NEESE) they were named hominid after the cave.
However, until now, the researchers have until now had little artifacts, so they were not sure when the cave population lived there. Now, two new research shows a chronology for the inhabitants of the cave.
In a study, Australian and Russian researchers used optical dating to determine the age of cave sediments. They could not use radio carbon dates because organic objects could be trusted in less than 50,000 years. On the other hand, optical dating scientists will know from time to time that the soil quartz and the feldspar beans were exposed to sunlight.
In the other study, researchers from Germany, the United Kingdom, Australia, Russia and Canada analyzed the prediction of carbon dioxide (radiocarbon dating), which found bones, teeth and coal parts in the upper layers. site; and then created a statistical model that has recently been found in the cave recently discovered.
"We invented a new, deeper and oldest method and built a solid chronology of Denisova Cave sediments," researcher Bo Li, Associate Professor at Earth School, Atmospheric and Life Sciences, investigated. The Australian University of Wollongong said in a statement.
Additionally, the new statistical model includes all the evidence of "dating and dating for those isolated fossils and small ones," said Katerina Douka, research scientist, Max Planck Institute of Science for archeology scientist in Human History in Germany, in a statement. [Denisovan Gallery: Tracing the Genetics of Human Ancestors]
However, the questions follow the cave-dated material. For example, "if human fossils were transported from human occupations or carnivorous activities and were transported from the original local deposition?" Chris Stringer, a leading researcher at the Natural History Museum in London, has asked him.
A doubt about the cave continues: modern humans live there? Our species (Homo sapiens) has now been 50,000 years in other parts of Asia, but it is not clear H. Sapiens Denisovans came together in the cave. For this reason, scientists have not yet discovered the remains of fossil or gene traces of modern human cave, although the researchers found bones of men between 50,000 and 46,000 years old. The group could not get DNA, so it is unclear what species are bones.
In addition, it is possible that human beings have crafted human beings in some artifacts.
"The question is open Denisovans or modern humans made the oldest points of bone and personal ornaments [tooth pendants] They found themselves in the cave ", Tom Higham, a professor at Archeology at the University of Oxford, worked on radiocarbon research, said in his statement." The dates between now between 43,000 and 49,000 are known directly, such as artifacts throughout northern Eurasia. "
But Stringer said he would put his money on early modern humans.
"Today's modern humans map somewhere else, such as Ust & # 39; -Ishim Siberia," said Stringer at Live Science email. "But the authors [radiocarbon dating] Papers, but surprisingly, argued that Denisov was responsible for what he supposed, even though Denisov still does not know in sequence.
"The only question that can be resolved solely can be solved and find more discoveries and research," added Stringer.
Both studies were published online yesterday (January 30) in Nature magazine.
Originally posted Live Science.