[N] 2003 Majungatholus was a cannibal
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 common among dinosaurs but difficult to prove.
The researchers were careful to compare the tooth-scored Madagascar bones to the teeth of other animals living on the island 65 to 70 million years ago. One two-footed, meat-eating dinosaur named Masiakasaurs was ruled out because of its small size: It only grew to one-fifth the size of 30-foot