Scientists have discovered evidence that a dinosaur that lived in Madagascar more than sixty-five-million years ago ate members of its own species.

　　Scientists already had evidence that dinosaurs ate plants and other kinds of dinosaurs. This new research supports the idea that there were also dinosaurs that ate other members of their species -- cannibals, in other words.

　　Dinosaurs first appeared more than two-hundred-twenty-million years ago. They died out about sixty-five million years ago. The different species of dinosaurs were different in size. The largest dinosaur was more than twenty meters long, while the smallest was about the size of a chicken.