Using specialized algorithms and drawing data both new and ancient researches fleshed out a family tree that touches roughly 27 million ancestors and reaches back back some 2 million years ago.
at creating a sweeping family tree for the human race, and at least three others, reached back 2 million years, long beforeThe study from Oxford’s Big Data Institute drew on 3,601 human genomes taken from several modern databases, eight ancient individuals and 3,589 more ancient samples derived from 100 other studies. Using specialized algorithms, the researchers fleshed out the tree further, adding limbs until it reached about 27 million ancestors.
According to the first tree, early humans originated in Sudan some 2 million years ago and didn’t shift to the Middle East and Central Asia until around 280,000 years ago. Then at around 140,000 years ago, a concentration formed in Papua New Guinea in Oceania. Researchers found that modern-day Oceania contains the most leftover genes from the ancient Denisovan people, an early human group that walked the soils of Asia and Oceania long before. The Papua New Guinea area also bears significant signs of Neanderthal DNA, along with much of Asia and Siberia.
The study also concludes that early humans had settled in Central and South America about 56,000 years ago, far earlier than previous estimates, a possible artifact caused by later descendants who lived in the area. A estimated that humans had first traveled from the Alaska area to the present-day Pacific Northwest about 16,000 years ago.
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