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Science Were dinosaurs warm blooded? The bones point to yes. (+video)

Studies of growth lines in bones cast into doubt the belief that dinosaurs were cold-blooded, researchers say. 

By Jennifer Welsh, Staff WriterLiveScience / June 27, 2012

Oscar Sanisidro. Institut CatalĂ  de Paleontologia Miquel Crusafont

Dinosaurs may not have been the slow, sunbathing reptiles researchers used to think. In fact, they may have been warm-blooded, new research suggests.