"This is the first comprehensive treatment of the biology of the Monstersauria in nearly 50 years, during which time our knowledge has increased dramatically. It gives the reader an unprecedented opportunity to understand the evolution, ecology, and behavior of gila monsters and beaded lizards, as well as insights into folklore, venom, and threats to the existence of these fabled animals."--William Cooper, Indiana University-Purdue University at Fort Wayne "Beck is the foremost authority on these animals and has published extensively on them. He provides a highly readable and fascinating summary of their biology."--Jonathan Campbell, author of Venomous Reptiles of Latin America

Introduces the physical characteristics and habits of the poisonous lizard native to the Southwest.

A well-illustrated, very readable account of the largest and only poisonous lizard in the United States.

Discover the amazing world of our cold-blooded friends in this book all about frogs and amphibians for kids. Embark on a fun, fact-filled dive into the world of frogs and amphibians with Everything You Need to Know About Frogs. Children will love to learn all the basics of reptile and amphibian anatomy in this beautiful and informative book on frogs. Packed with vibrant pictures and lots of fascinating facts, kids can enjoy learning all about a frog’s habitat and behavior. Discover how these amphibians survive in lakes and rivers, forests and deserts, and how these clever creatures have adapted to live in seemingly inhospitable habitats. Alongside, in between, and on top of all that, this riveting frog book also provides ideas for things to make, games to play, quizzes, and amazing facts to share with friends! Inside the pages of this frog book for children, you’ll find: A whole host of amphibians and reptiles including toads, snakes, lizards, salamanders, turtles, newts, tortoises and crocodiles. Close-ups, quizzes, and games with an exciting take on the amazing world of our cold-blooded friends. A look at these creatures from all angles – information on habitat and breeding habits, as well as oddities such as how to survive a crocodile’s attack, how a frog’s legs influenced Frankenstein, or how to play snakes and ladders. Children aged 7+ can learn all about frogs and amphibians from the very first page of this book, which combines little-known information with engaging text and an exciting design. Each page contains everything kids need to know, and everything they WANT to find out about frogs!. Complete the series This delightful frog book is part of the Everything You Need to Know series of educational books for children and also includes Everything You Need to Know About Snakes and Everything You Need to Know About Dinosaurs!

This book of photography represents National Geographic's Photo Ark, a major cross-platform initiative and lifelong project by photographer Joel Sartore to make portraits of the world's animals -- especially those that are endangered. His message: to know these animals is to save them. Sartore intends to photograph every animal in captivity in the world. He is circling the globe, visiting zoos and wildlife rescue centers to create studio portraits of 12,000 species, with an emphasis on those facing extinction. He has photographed more than 6,000 already and now, thanks to a multi-year partnership with National Geographic, he may reach his goal. This book showcases his animal portraits: from tiny to mammoth, from the Florida grasshopper sparrow to the greater one-horned rhinoceros. Paired with the prose of veteran wildlife writer Douglas Chadwick, this book presents an argument for saving all the species of our planet.

Monitor lizards (genus Varanus) have attracted a great deal of interest--these large and impressive lizards are often the centerpiece of reptile house exhibits. Monitors tend to be fairly wary and difficult to observe--therefore they are not particularly tractable research subjects, but they have nevertheless received an extraordinary amount of attention from devoted students.Varanoid Lizards of the World is a comprehensive account of virtually everything important that is known about monitor lizards, beginning with detailed species accounts and proceeding to various modern comparative analyses. Where possible, people who have had detailed field experience with a particular species have assembled species accounts. In the process of reporting what is known, we also identify what remains to be learned about these lizards. We hope to establish a prototype showing how such a diverse monophyletic group can be exploited both to identify and to understand the actual course of evolution. As such, this effort becomes a protocol for future workers to follow for other groups of closely-related species.

The first volume contains species accounts of the venomous lizards and elapid and viperid snakes found north of Mexico's twenty-fifth parallel. Volume two covers the twenty-one species of rattlesnakes found in the United States, Canada, and northern Mexico.