Dinosaurs

Dinosaurs are animals that lived millions of years ago. No person has ever seen a dinosaur.

But people have found dinosaur fossils. Fossils are parts and imprints of a plant or an animal that lived long ago. Some fossils are bones, teeth and footprints that have turned into rocks. Scientist study the fossils to learn about dinosaurs.

Fossils give clues about the lengths, the weight, the teeth and age of dinosaurs.