Dinosaur Cannibal: Fossil Evidence Found in Africa John Roachfor National Geographic News April 2, 2003 View a Dinosaur Cannibal Photo Gallery: Go>> "Eat or be eaten" may have been the mantra for Majungatholus atopus, a large, two-footed carnivorous dinosaur with a bump on its head that roamed Madagascar, the island off the southeast coast of Africa, about 65 million years ago. Analysis of bones scored by tooth marks suggests Majungatholus was a cannibal that regularly dined on members of its own species and other dinosaurs. The rare, tooth-marked bones are the best evidence to date for a behavior probably...