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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!
Thursday, July 9, 2009 |
Photo: Monkeys Use Baby Talk With Infants
The sounds are similar to "motherese," the high-pitched, sing-song noises human mothers around the world use to communicate with their babies.
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ADVERTISEMENTNATIONAL GEOGRAPHIC'S PHOTO OF THE DAYVote for Your Favorite Green Idea!
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