This highly acclaimed encyclopedia combines authoritative, easy-to-read essays with exciting photographs showing reptiles and amphibians in their natural habitats. Illustrations explain anatomy and biological features, and maps show world distribution of species. Commissioned articles by scientists, zoologists and researchers provide the latest findings and interpretations of data.

Each species listing has a "factfile" of essential data: scientific order and population; distribution (with a color-coded map) and habitat; size and color; reproduction and life cycle; longevity and conservation status.

All status descriptions have been updated in this revised edition, which also includes:

Descriptions of all new families of amphibians and reptiles

Updated range maps for all families

Revised family relationship diagrams in light of current taxonomic understanding

New species and genus totals for all groups.

Authoritative, comprehensive and beautiful, this landmark volume is strongly recommended for anyone with a keen interest in amphibians and reptiles.