Triceratops Had Up to 800 Teeth and Replaced Them Throughout Its Life
Triceratops was one of the last non-avian dinosaurs to roam Earth before the mass extinction. It had a battery of up to 800 teeth arranged in stacks, constantly being replaced as old ones wore down from chewing tough vegetation — similar to shark teeth. Its three horns and large frill were likely used for both species recognition and combat, as fossilised skulls show healed puncture wounds from horn-to-horn fighting.