Mason, Conrad Dinosaurs - London, [Tulsa, Okla.] Usborne Pub. ; [EDC Pub.] 2010 - 47 - Usborne first reading . Introduces bears, discussing different types; their behavior, physical characteristics, habitat, diet, and life cycle; when they lived; and how people have learned about them through the fossils they left behind ISBN: 9780794527303 Dewey Class. No.: 500 / MAS-D