Data Show Orcas Defy Sleeping

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Documentary Captures 'March of the Penguins'

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Thomas Friedman and Energy Independence

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Predicting Earthquakes

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Indian Ocean Tsunami Recovery Update

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Keeling Helped Awaken World to Climate Change

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Environmental Groups Reconsider Nuclear Power

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Chickadee Calls Carry Specifics on Danger

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Study Looks at Likelihood of a Major Midwest Earthquake

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Senate Considers Ecology in Energy Bill

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Scientists Find Bacteria that Converts Light into Energy

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Life in the Land of the Midnight Sun

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Crab Discovery of Interest to Genetic Scientists

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