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 , LiveScience

Oscar Sanisidro. Institut Català 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.