From woolly mammoths to saber-toothed cats, prehistoric mammals once roamed Earth. With beautiful and engaging illustrations, authentic photos, and accessible text, kids will learn all about these mighty mammals in this level 2 reader....

IN 1902, WILLIAM HORNADAY handed a map to the famous paleontologist Barnum Brown. It was Hornaday's hand-drawn directions to a remote area of the Montana Badlands, where he believed amazing dinosaur fossils lay buried. Following the map,...

Watch a tiny tadpole grow into an adult frog in this book full of facts and photographs. Learn what tadpoles eat, how they survive, and how they transform into frogs. Full color. von Zoehfeld, Kathleen Weidner