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Fresh doubts over _T. rex_ chicken link

Critics call on researchers to disclose protein spectra data.

Critiques of a _Tyrannosaurus rex_ study on protein from its femur bone (below) have been as fierce as the dinosaur. Credit: L. Psihoyos/Corbis
Credit: E. Lamm/Museum of the Rockies


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Pavel Pevzner

John Asara

Mary Schweitzer

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Dalton, R. Fresh doubts over _T. rex_ chicken link. Nature 454, 1035 (2008).

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