Could Pregnancy Hormone Help Heal Brain Injuries?

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Myth: HIV/AIDS Rate Among Black Women Traced To 'Down Low' Black Men

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Bioengineered Plants Gone Wild

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Did Algae Contribute To Mass Extinctions?

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Scientists Solve Mystery Of Ear-Splitting Sounds

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Neuroscientists And Magicians Mingle At Conference

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A farmer harvests corn on a farm near Spring Mills, Pa. According to current biofuel laws, if you burn ethanol from corn in your car, the government doesn't count the carbon dioxide that comes out of the tailpipe as an actual carbon emission. Carolyn Kaster/AP hide caption

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Multimedia Audio

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Cancer Society Clarifies Screening Guidelines

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Study Finds H1N1 Virus Lives Longer Than Expected

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Wes Jackson, founder of the Land Institute, at his farm in Salina, Kan. Richard Harris hide caption

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Prairie Pioneer Seeks To Reinvent The Way We Farm

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This retinal prosthesis has been implanted in the eyes of 32 patients. The device receives wireless data from the camera which it then translates into electronic signals that are sent to the brain, restoring sight. Courtesy Second Sight Medical Products, Inc. hide caption

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Bionic Eye Opens New World Of Sight For Blind

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The study tested classically trained violinists and pianists, and found that their brains were much better adapted to discern subtle pitch and tonal differences in sound. iStockphoto.com hide caption

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Say What?! Musicians Hear Better

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A snowy tree cricket feeds on a leaf from a mountain dalea plant. Gerardine Vargas hide caption

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Slo-Mo Cricket Chirps Reveal Secret Serenades

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1800s-Era Sea Logs Chart Course Of Climate Change

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Mapping The Boundaries Of The Solar System

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