Long before humans even walked the earth, dinosaurs ruled its lands, seas, and skies. This information-rich book takes readers millions of years into Earth�s past to witness the birth, reign, and mass extinction of these incredible creatures. Intricately detailed 3-D images and illustrations of prehistoric species immerse readers in a time before humanity. As they explore the Mesozoic era, readers will learn about geological time, evolution, animal classification, and other essential science curriculum topics. Readers will pour over fascinating fact boxes to satiate their curiosity on this high-interest subject. With crucial science material and engaging subject matter even reluctant readers will absorb, this intriguing book will be a popular addition to any library.