Crocodiles come in a variety of shapes and sizes, from the infamous saltwater crocodiles that are occasionally nearly 6 meters long, to the diminutive 1.5 meter dwarf caimans from South America's tropics. This book explores all the facts and figures surrounding the ancestry of this intriguing family of reptilians, dispelling myths, and exploring their extensive evolution in the 230 million years that they have lived on this planet. With fantastic photography this book encapsulates the diversity of these creatures.