Bison Bones Shed Light on Demise of Large Mammals

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Spanish Scientists Discover Fossil of Ancient Ape

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Scientists Say Advisory Panels Politicized

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Nobel Chemistry Winners Examined How Cells Recycle

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American Trio Wins Nobel Prize for Physics

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Two Americans Share Nobel for Smell Research

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Quake Strikes in Central California

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Study Links Glaciers, Warmer Waters

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Pollution's Long-Term Effects on Pre-Teens' Lungs

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Family Planning Advocates Seek to Revive U.N. Goals

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Groups Seek to Shore Up Population, AIDS Efforts

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Bogs Watched for Warning Signs of Carbon Upset

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