Common human ancestry theory bolstered-
CBC News
The research, which compared DNA from aboriginal Australians and Melanesians in New Guinea to DNA patterns linked to early humans, found that both of the modern groups share genetic characteristics that correlate with humans from Africa about 50,000 years ago.
The research, reported in the U.S. Proceedings of the National Academy of Science, was conducted by researchers at the University of Cambridge and Anglia Ruskin University, both in Cambridge, England, who led an international team that reached from Estonia to California.
The theory of the African origins of modern man were previously questioned in some quarters, due to skeletal and tool remains in Australia that differed from evidence elsewhere along the route through South Asia that would have been taken by early migrants.
Some researchers have attributed the differences to the possibility of interbreeding among the early colonists and local **** erectus species, or a second migration.
The new research shows that no other genetic material was inherited by the Australians or New Guineans studied. The DNA shows that they evolved in relative isolation after the African migration, the scientists said.
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2007-05-15
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