Describes the physical characteristics and behavior of dinosaurs and environment in which they lived. Includes four two-page spreads with acetate overlays.

"Describes the animals of the Cretaceous Period when many types of dinosaurs evolved, including the famous Tyrannosaurus. Includes an Animal Families glossary, prehistory timeline, and pronunciation guides"--Provided by publisher.

"Describes some of the animals of the Jurassic Period, a time when dinosaurs reached their biggest sizes. Includes an Animal Families glossary, prehistory timeline, and pronunciation guides"--

"Describes the animals of the Quaternary Period, when an ice age took hold of Earth, and new animals evolved to survive the harsh weather. This period also marks when our human ancestors started to appear. Includes an Animal Families glossary, prehistory timeline, and pronunciation guides"--