Meet these extraordinary living fossils --the amphibians! Explore their complicated life cycle with an engaging set of activities. ScienceWiz Online Discovery Frogs, Toads and Amphibians includes hands-on projects and an access code to a web-based book. This new type of book combines online storytelling with 3-D manipulations, interactive explorations and sing-along songs. It includes an extraordinary collection of embedded videos: outrageous, endearing, informative. Watch a time-lapse video of metamorphosis. Frogs are incredible shape-shifters. They start as water-breathing swimmers -- tadpoles. They transform into air-breathing adults. With these transformations, amphibians became the first vertebrates to walk on land!