Who do you want to see receive $20,000 to put their Earth-saving idea into action? Check out the ten Green Effect finalists, and until July 20 you can vote—up to once a day—for your favorite idea!
Monday, July 6, 2009 |
Monday, July 6, 2009 |
Photo: Humans Wore Shoes 40,000 Years Ago, Fossil SuggestsThe finding suggests humans were wearing footwear 10,000 years earlier than previously believed. Photograph courtesy Hong Shang of the Washington University in St. Louis
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ADVERTISEMENTNATIONAL GEOGRAPHIC'S PHOTO OF THE DAY |
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