Using sophisticated techniques to determine the age of fragments of bones, teeth and artificial caves in Siberia, human beings have been more advanced than newer knowledge.
Studies published on Wednesday revealed Denisovans, only known as the exclusive Denisova Cave sites, on the shores of Altai Mountains.
As yet enigmatic, genetic markings have been left in our species, including Homo sapiens, especially in Papua New Guinea and Australian indigenous populations, which maintain a small but significant percentage of Denisovan DNA, evidence of survival among species.
Fossils and DNA traces showed that the Denisovans cave has been detected at least between 200,000 and 50,000 years ago, and now Neanderthals are related to the disappearance of human species from 200,000 to 80,000.
Stone tools indicate that one or both species can occupy a cave that started 300,000 years ago.
Scientists last year described a part of a child's Denisova Cave bone, a mother of Neanderthal and Denisovan father, proliferation evidence. The girl, the nickname "Denny", lived about 100,000 years ago, according to the new study.
The pendants made from animal teeth and cement bone points were between 43,000 and 49,000. Denisovans could have been made, suggesting a level of intellectual sophistication.
"Traditionally, these objects are found in Western Europe as a feature of our species's expansion and behavioral modernity, but in this case, Denisovans could be their authors," said the archeology scientist Katerina Douka, Institute of the Max Planck Institute. Human history in Germany.
Our species emerged in Africa about 300,000 years ago, then expanding worldwide. There is no evidence that Homo sapiens came to Denisova Cave when he made these objects.
Denisovans are only known as three teeth and a finger.
"New fossils would be particularly welcome, as we know nothing about the physical appearance of Denisovans, just like that," said geologist-scientist Zenobia Jacobs of the Wollongong University in Australia.
"Many Australian ADN Australian aborigines and guinea pigs suggest that Asia's Southeast and Southeast Asia may be very broad in scope, but we must find a tough presence in these regions, Denisovans," added Wollongong geologist Richard "Bert" Roberts University .
Research was published in Nature magazine.