Comparison between cancerous and non-cancerous dinosaur bones (image) Royal Ontario Museum Share Print E-Mail Caption Comparison between thin sections of the cancerous shin bone (left) and normal shin bone of the horned dinosaur Centrosaurus apertus. The fossils were thin sectioned to compare the bone microstructure and properly diagnose the osteosarcoma. Credit Credit: Courtesy of Royal Ontario Museum. © Royal Ontario Museum/McMaster University Usage Restrictions For use with this story only Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.