Bones of closest human ancestor found

Associated Press
One of two sets of bones from Australopithecus Sediba, found in South Africa are unveiled at the University of the Witwatersrand in Johannesburg, Thursday, Sept. 8, 2011. The bones offer the most powerful case so far in identifying the transitional figure that came before modern humans, finding some are calling a potential game-changer in understanding evolution. (AP Photo/Denis Farrell)

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An analysis of 2 million-year-old bones found in South Africa offers the most powerful case so far in identifying the transitional figure that came before modern humans.

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