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Today's Top News

Thursday April 24, 2008  

Two Evils Compete: Global Warming vs. Ozone Hole

Continuous sulfur injections would deplete polar ozone, delay ozone hole recovery.

Radical Science Aims to Solve Food Crisis Gunk in T. Rex Fossil Confirms Dino-Bird Lineage
Dead Hawk's Last Meal Claws Partway Out Bugs Use Plants as Telephones


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Top Features


Gooey Origin of Human Placenta Revealed
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Why You Make the Same Mistake Twice
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How the Magna Carta Changed the World
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Earliest Oil Paintings Discovered
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Video

Pulsars: Death and Rebirth

VIDEO: Bagged Blood Danger

Image of the Day

Monkey Exposed to Unknown Poxvirus
Red colobus monkeys living in a park in western Uganda harbored antibodies to an unknown orthopoxvirus.

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Shark Jobs: Nature's Dirty Work


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National Geographic Earthquakes & Volcanoes Kit

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