Dinosaurs were predominantly meat-eating predators, with herbivorous dinosaurs being rare exceptions.
Paleontological evidence shows that herbivorous dinosaurs comprised approximately 65-75% of non-avian dinosaur species. Sauropods (exclusively herbivorous), ornithopods, and ceratopsians were abundant and diverse. Theropods, the carnivorous group, actually represented only 25-35% of dinosaur diversity, though they dominate popular culture due to their dramatic predatory behaviour. Tooth morphology, digestive systems, and skeletal features provide clear evidence of dietary specialisation. The cultural focus on predators like T. rex has skewed public perception of dinosaur biology.