"Every drop of human blood contains a history book written in the language of our genes."
"So what we can answer [as geneticists] is questions about biology, about biological ancestry. But to make any sense of that historically we have to contextualize it - the archaeology, the linguistic pattern, even the climatology."
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Source: Finding the roots of modern humans by Marsha Walton, www.cnn.com. April 14, 2005.
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