Investigating the prehistoric world—from the Gobi desert in the heart of Mongolia to the Valley of the Moon in Argentina to the Provincial Park in Canada—this fascinating exploration teaches children about dinosaurs as they discover fossilized remains and skeletal structures. Colorful and accurate illustrations and stunning photographs show archaeologists at work as they piece together the factors that led to the extinction of Earth’s most fascinating reptiles. Sidebars reveal information about paleontologists and their excavations, making this a comprehensive, educational, and exciting resource about the creatures that ruled the Earth millions of years ago.