Christopher Joyce Christopher Joyce is a correspondent on the science desk at NPR. His stories can be heard on all of NPR's news programs, including NPR's Morning Edition, All Things Considered, and Weekend Edition.

Renewable Energy Needs Land, Lots Of Land

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The coats of domestic dogs vary wildly and can be long, short, straight, wavy, curly or more. Pictured here (left to right) are three breeds with different coat types: Saluki, Vizsla and Samoyed. Tyrone Spady hide caption

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Tyrone Spady

Dog Hair May Shed Light On Cancer

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For Early Man, It Wasn't Easier Being Green

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Early Human Lessons: Hot Rocks Make Sharper Tools

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Critics Say 'Clunkers' Program Isn't Very Green

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When Rain Falls On Snow, Arctic Animals May Starve

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Moths Outwit Bats By Jamming Sonar

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Climate Change Bill Postponed By Senate

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Fossil Hunters Uncover Rare Dinosaur Skin

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1,000-Page Bill Attracts Lobbyists To Energy Plan

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As Fences Cut Off Migration, Hoofed Species Decline

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Alpha Bison: The Quieter Bellow Wins The Females

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Larger Populations Triggered Stone Age Learning

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