Evidence of Sex in Single-Celled Organism

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Scientists Assess Value of Publicizing Their Work

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Reviewing a Year of Data from Mars Rovers

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Cloning Humans to Harvest Stem Cells

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The Savvy Traveler's Year-End Air Travel Forecast

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Surround-Sound Debut on 'Toast of the Nation'

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The Year in Science with NPR's Ira Flatow

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A Strategy to Help in Hard-Hit Sri Lanka

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The Marketplace Report: US Airways Woes

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Tsunami Update: Turning from Rescue to Cleanup

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Researchers Deduce Gene Sequence of Mammalian Ancestor

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Yushchenko Declares Victory in Ukraine Vote

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