Amphibian fossils tell us a great deal about the frogs, toads, salamanders, and other amphibians that lived on Earth thousands and millions of years ago. With every turn of the page, young fossil enthusiasts will be delighted to see photographs of amphibian fossils and learn how they formed. The text was designed to work hand-in-hand with the photographs and diagrams to provide a comprehensive treatment of this essential elementary science concept....

Have you ever wondered about the bugs of the prehistoric past? This book introduces readers to amazing insect fossils that have opened scientists' eyes to the tiny, six-legged creatures of the past. Many insects have been preserved perfectly in amber, while others left imprints in sedimentary rocks. Vivid color photographs of insect fossils and exciting diagrams are sure to catch readers' interest. Engaging text and sidebars make this elementary science...