Known for the large bony frill and the three large horns coming from its head, the triceratops is one fascinating dinosaur. Students will find out everything they wanted to know about this plant-eating giant that roamed the land during the Cretaceous Period. Included are scientists' theories on the purpose of the frill and the use of the horns. Budding paleontologists will be amazed by the photographs of dinosaur fossils as well as the full-color images of what the triceratops might have looked like.