Stone Age mass graves reveal green Sahara

LOOKING at the dusty Sahara desert now, you wouldn’t think that it could ever have been a lush, green home. The excavation of a graveyard on the shore of a driedup lake in Niger, though, suggests that at least two Stone Age peoples once lived there. Paul Sereno, one of National Geographic‘s explorers-inresidence, stumbled upon the 10,000-year-old site, called Gobero, during a dinosaur-hunting expedition in 2000. The 67 graves excavated so far reveal intriguing clues about these desert dwellers. First came the Kiffian, who grew up to 2 metres tall and hunted wild game,
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