Dinosaurs became extinct about 65 million years ago. They died after a big comet hit the Earth and killed them all. Today, we learn about Dinosaurs through fossils and I have been to the Natural History Museum to see their bones and other intersting things.
There are lots of different types of Dinosaurs. Some are big and some are small. Some are preditors and eat other dinosaurs and some just eat plants. These are called Carnivores and Herbivores. I like the Carnivores the best, but would not like to meet one. My favorite Dinosaur of all is called Tyrannosaurous Rex, or T-Rex for short.
This dinosaur is call Triceratops. It used to eat plants and defend itself with its big horns.