Dinosaur Mountain: graveyard of the past
Sciences et technologies, Dinosaures, États-Unis (voyage et géographie), Essais et documents généraux
Audio avec voix humaine
Résumé
Fossils are traces or remains of ancient life. People who study them are called paleontologists, and they search for clues to what life was like long ago. The author describes the work of paleontologists in learning about dinosaurs, especially the… discoveries made at Dinosaur National Monument in Utah. For grades 4-7 and older readers