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Editor's note: Go inside one of the most amazing dinosaur discoveries and learn why the federal government seized it. CNN Films' "Dinosaur 13" premieres at 9 p.m. ET Thursday, December 11, on CNN.
(CNN) - Imagine spending your entire career searching for something buried somewhere within the Earth - and then when you miraculously find it, the federal government seizes your discovery.
That's the predicament paleontologist Peter Larson found himself in after he and his team unearthed a nearly complete Tyrannosaurus Rex skeleton in 1990, preserved for some 65 million years in what is now the state of South Dakota.
It is the most intact T-Rex skeleton ever found.