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.

FDA Revamps Rules for Cattle Part Use

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Digging for Dinosaurs in Antarctica

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Critics Call for Stricter Livestock Feed Rules

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Agencies Debate Mad Cow Testing

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Mad Cow Fears Lead to Tighter Cattle Rules

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U.S. Investigates Suspected Mad Cow Case

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The Lake Wales Ridge, 'Florida's Attic'

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Analysts: Iraq Has Plenty of Evidence to Try Saddam

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Remembering Eisenhower's 'Atoms for Peace' Speech

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The Physics of Fish

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Details of GOP Energy Bill Emerge

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GOP Lawmakers Agree on Sweeping Energy Bill

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Summer Blackout: What Went Wrong?

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Researchers Structure Virus DNA in Record Time

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