Study Plumbs Workings of Deadly Parasite

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Protein in Mice May Fight Bone Loss

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Drafting a Genetic Map of Human Diversity

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Hearing Advance in Animal Holds Hope for Deaf

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Hammett's 'Maltese Falcon,' 75 Years Later

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Evolutionary Biologist Ernst Mayr Dies at Age 100

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The Return of Alan Alda

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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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