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MOSSEL BAY, SOUTH AFRICA - MAY 26: An overview of the beach and coastline on May 26, 2010, at Pinnacle Point near Mossel Bay South Africa. The area has several caves where excavation is going on. These caves sheltered humans between 164,000 and 35,000 years ago, at a time when Homo sapiens was in danger of dying out. These people may have been the ancestors of us. (Photo by Per-Anders Pettersson/Getty Images)