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Gene studies confirm "out of Africa" theories By Maggie Fox, Health and Science Editor WASHINGTON (Reuters) - Two big genetic studies confirm theories that modern humans evolved in Africa and then migrated through Europe and Asia to reach the Pacific and Americas. The two studies also show that Africans have the most diverse DNA, and the fewest potentially harmful genetic mutations. One of the studies shows European-Americans have more small mutations, while the others show Native Americans, Polynesians and others who populated Australia and Oceania have more big genetic changes. The studies, published in the journal Nature on Wednesday, paint...

In radio, there's perhaps no greater insult than to be told your program helps elderly listeners nod off at night. Talk shows are supposed to keep people awake, not serve as a sleep aid. In addition, because advertisers demand audiences primarily between the ages of 25 and 54, stations usually try to aim in that direction, without completely chasing away listeners older than 55. With that, I'm not sure if Seattle Post-Intelligencer reporter Gordy Holt meant to dig extremist KIRO/Seattle host Mike Webb, but the result was one of the most devastating verdicts ever levelled against a radio program: