This is the widely acclaimed, preeminent reference and text on all aspects of amphibian biology, including their life history, ecology, morphology, and evolution. Copiously illustrated with original drawings and photographs and meticulously referenced with more than 2,500 bibliographic entries, it has proved indispensable to professional biologists and students alike. Now reissued in paperback with an updated preface by the authors, Biology of Amphibians remains the standard work in its field.

Amphibian Species of the World (ASW ver. 5.5) is a comprehensive relational database for the names, taxonomic literature, and known distribution of all living (and recently extinct) amphibians. In addition, it links to web resources such as images, life-history information, and genetic data.

PubMed is a service of the U.S. National Library of Medicine that includes over 19 million citations from MEDLINE and other life science journals for biomedical articles back to the 1950s. PubMed includes links to full text articles and other related resources.