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Thread: At 400,000 Years, Oldest Human DNA Yet Found Raises New Mysteries

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    Default At 400,000 Years, Oldest Human DNA Yet Found Raises New Mysteries

    http://www.nytimes.com/2013/12/05/sc...cience&_r=1&#h[]


    Scientists have found the oldest DNA evidence yet of humans’ biological history. But instead of neatly clarifying human evolution, the finding is adding new mysteries.


    In a paper in the journal Nature, scientists reported Wednesday that they had retrieved ancient human DNA from a fossil dating back about 400,000 years, shattering the previous record of 100,000 years.


    The fossil, a thigh bone found in Spain, had previously seemed to many experts to belong to a forerunner of Neanderthals. But its DNA tells a very different story. It most closely resembles DNA from an enigmatic lineage of humans known as Denisovans. Until now, Denisovans were known only from DNA retrieved from 80,000-year-old remains in Siberia, 4,000 miles east of where the new DNA was found.


    The mismatch between the anatomical and genetic evidence surprised the scientists, who are now rethinking human evolution over the past few hundred thousand years. It is possible, for example, that there are many extinct human populations that scientists have yet to discover. They might have interbred, swapping DNA. Scientists hope that further studies of extremely ancient human DNA will clarify the mystery.
    Leviticus 19:33 And if a stranger sojourn with thee in your land, ye shall not do him wrong. 34 The stranger that sojourneth with you shall be unto you as the homeborn among you, and thou shalt love him as thyself; for ye were strangers in the land of Egypt: I am the LORD your God.

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