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endangered species

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#79: The Ancient Rat as Big as a Bull

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Crichton's Dream Survives: Woolly Mammoth Genome 50% Complete

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Lonesome George, the World's Rarest Tortoise, Isn't Ready to Be a Dad

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Scientists Clone a Mouse From the Deep Freeze; Woolly Mammoths Could Be Next

10 Studies That Revealed the Great Global Amphibian Die-Off—and Some Possible Solutions

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Ten Ways the World Will End

gray wolf

Are Wolves Interbreeding Themselves to Extinction?

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Global Warming Threatens Tropical Species, Too

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One Quarter of World's Mammals Are Threatened With Extinction

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Careful Crossbreeding Could Resurrect Extinct Galapagos Tortoise

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The Last Mammoths Made a Round Trip Across the Bering Land Bridge

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Forecasting the Future May Be a Matter of Fun and Games

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