Last Updated: Thursday, November 21, 2013, 09:21
In the "Out of Africa" theory, Homo sapiens left their ancestral home in east Africa around 50,000 years ago, heading north, west and south.
Last Updated: Wednesday, July 25, 2012, 14:35
Scientists have long speculated that their vulnerability to the disease may have roots in the evolutionary past.
Last Updated: Wednesday, December 9, 2009, 09:25
The US government agreed on Tuesday to pay 1.4 billion dollars to settle long-running claims it mismanaged land and money it held in trust for hundreds of thousands of Native Americans.
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