Tyrannosaurus rex scraped the meat from the ribs of its prey in much the same way a human might gnaw on a serving of barbecued ribs, a meeting of geologists was told on Tuesday.
Bite marks on fossil bones collected in the American West showed evidence that the fearsome dinosaurs used their curving, dagger-like teeth with some dexterity to remove the meat from bones before munching on them like a modern-day dog, Daniel Hyslop of the University of Wisconsin, Madison, told a Geological Society of America meeting.
Fossilized bones contain puncture holes that exactly match the conical, serrated teeth of T. Rex, Hyslop found.
Herds of duck-billed Hadrosaurs and the horned Triceratops that roamed 65 million years ago were likely victims of the top predator. It remains unknown if T. Rex dined primarily on fresh meat or scavenged for anything, alive or dead, in its path.