(ORDO NEWS) — Scientists from Florida Atlantic University, together with colleagues from Emory University (USA), have restored the history of the settlement of South America.
To do this, they analyzed the DNA of two ancient people buried at different sites in the northeast of Brazil, reports Nature Communications.
Genetic analysis showed that migrations were not only from north to south, but also in the opposite direction along the Atlantic coast.
It also became known about the evidence of the Neanderthal origin of the ancient settlers of South America.
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“The new model shows that the settlement of the Atlantic coast occurred only after the settlement of most of the Pacific coast and the Andes,” the text of the scientific work says.
Another unexpected discovery was strong Australasian genetic signals in the ancient genome from Panama.
The Pacific Ocean lies between these regions, and scientists could not say how the owners of the Australasian genome penetrated into such a remote region and did not leave any traces in North America.
In addition, researchers have identified an extensive Denisovan ancestry among the ancient inhabitants of Uruguay and Panama.
Denisovans are extinct hominids, whose traces were first discovered in Siberia.
Denisovans mixed with Homo sapiens about 40,000 years ago, but their lineage remained unbroken, and the Denisovan genes were preserved in a 1,500-year-old individual studied by geneticists.
According to scientists, this suggests that the crossing event was quite significant.
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