Ancient Extract: T. rex fossil yields recognizable protein | Science News

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Ancient Extract: T. rex fossil yields recognizable protein

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11:19am, April 11, 2007

New analyses of a Tyrannosaurus rex leg bone reveal that the fossil, which is 68 million years old, preserves substantial remnants of proteins. The chemical makeup of the protein fragments adds to earlier evidence that modern birds are closely related to dinosaurs.

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