Triceratops were herbivores, which means they were plant eaters. They had a specialized diet, and their narrow mouth and low-set head suggest that they ate specific types of plants. They had large, narrow beaks at the ends of their jaws, which made it easier for them to grasp and pluck plants than to bite them. Triceratops would have eaten a diet that consisted primarily of leaves, and they would have been able to eat a more extensive plant-based diet thanks to their specialized jaw and beak design. The plants they ate may have included palms, ferns, cycads, and other species available at the time. They may have also eaten maple trees, eudicots, and angiosperms. However, they would not have eaten grass as grasses did not evolve until after the extinction of the dinosaurs. It is likely that they could use their stout bodies and horns to knock down taller trees.