Paleontologist Nick Fraser knew he had found something special when he unearthed a particular fossil in a Virginia rock quarry. He'd been digging up fossils there for nearly a decade, but this one was different: it seemed to be the remains of a dinosaur he'd never seen before. The only problem was he couldn't tell for sure. The fossil was so deeply embedded in the shale surrounding it that Fraser couldn't extract it without destroying it. After three years of scraping and dusting at the stone but getting nowhere, Fraser hit on a solution: he had it scanned with a high-tech imaging process known as computer tomography.moreless
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