Here you see a colorful and cheerful collection of dinosaurs that lived on earth many millions of years ago. Some were huge and some were small. Some were predators, but the largest dinosaurs ate only plants. The long-necked dinosaurs that stick their heads out at the top of the picture are herbivores and among the largest animals that have lived on land. The fearsome Tyrannosaurus Rex, which you see in the middle of the picture, had a large head and a huge mouth with many sharp teeth. Triceratops had three horns and a beak that resembled the beak of a parrot. Some puzzle pieces are cut out along the contours of the picture, and some pieces are shaped like dinosaurs.