Malignant cancer found in dinosaur bone

Researchers have discovered an osteaosarcoma on the lower leg of a Centrosaurus, the first time a malignant cancer has been discovered in dinosaurs. The fossilized fibula of a Centrosaurus apertus, a horned dinosaur that lived about 76 million years ago, was discovered in a large bonebed replete with Centrosaurus fossils in Alberta, Canada in 1989. …