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Not all dinosaurs were meat eaters. Just like people and animals of today, some ate meat, and some ate just plants. Approximately 65 percent of all dinosaurs were plant eaters (herbivores), while only 35 percent ate meat (carnivores). Carnivores usually had large jaws and sharp teeth. They also had long strong legs so they could be quick enough to catch their prey. One of the most notorious meat eaters was the Tyrannosaurus Rex. Other carnivores include the Velociraptor, Allosaurus, Megalosaurus and the Utahraptor. Plant eaters, which outnumbered their counterparts, have several different characteristics that help them get their food. Most herbivores had blunt, flat teeth for grinding leaves, plants, etc. Some even had pouches in their cheek to store their food for a longer period. As expected, herbivores have to consumer a far greater amount of vegetation than carnivores in order to obtain enough calories to sustain their life. They sometimes had to eat rocks to help grind up the tough plant fibers, which is similar to what a turkey must do today. Some herbivores include the Triceratops, Brontosaurus, Stegosaurus, Brachiosaurus and the Pterodactyl. Even though we mostly know what dinosaurs ate, scientists sometimes have to theorize based on the dinosaurs teeth and body type.

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