Bufonidae
Bufo, Atelopus varius - Harlequin Frog, Biological Control of the Cane Toad (Bufo marinus), Bufonidae - AmphibiaWeb, Bufonidae Family - AMNH, Bufonidae Family - Living Underworld, Bufonidae Family - University of Texas, Bufonidae Family - US Forestery Service
Dendrobatidae
Dendrobates auratus - Green Poison Arrow Frog, Dendrobates azureus - Blue Poison Frog, Dendrobates azureus - Blue Poison Frog, Dendrobates histrionicus - Harlequin Poison Dart F, Dendrobates lehmanni - Lehmann's Poison Frog, Dendrobates pumilio - Strawberry Poison Dart Frog, Dendrobates pumilio - Strawberry Poison Frog, Phyllobates bicolor, Phyllobates terribilis - Golden Poison Frog, Suriname Poison Dart Frog Gallery
Ranidae
California Red-Legged Frog, Family Ranidae, Rana muscosa (Mountain Yellow-legged Frog), Water Frog Information Pool
'Living Fossil' Frog Hopped with the Din
Nasikabatrachus sahyadrensis, a bright purple burrowing frog, was discovered in the Western Ghats hills of Kerala, southern India. It has been assigned to a new family, and its closest relatives live in the Seychelles islands.
Biology of the Frog
Information and facts including anatomy, life span, diseases, and history.
Connecticut Frogs
State Museum of Natural History site includes pictures and details about life span, coloring, reproduction, and habitat of the state's frogs and toads.
Deformed Frogs in Minnesota
Information on possible causes and what the MPCA and other organizations are doing about deformed frogs.
Exploratorium: Frogs
Features an online exhibition, frog myths across cultures, and sound files.
Frogs and Toads of Georgia
Detailed species accounts with photos, illustrations, calls, and range maps for 32 species.
Frogs and Toads of South Carolina and Georgia
Images, sounds, and species descriptions.
Frogs of Australia
Comprehensive guide including descriptions, distributions, breeding calls, identification key, and a glossary.
Frogs of South America
Photographs of frogs of Ecuador, Trinidad, Tobago, and the Lesser Antilles.
Frogs of Tasmania
A guide to Tasmania's frogs from the Tasmanian Parks and Wildlife Service. Includes sound files of frog calls.
Frogs of the Malay Peninsula
Guide to the frogs of the Malay Peninsula (Thailand, Malaysia and Singapore), with photos, desriptions, and audio. Includes information about biology and ecology, checklists, field tips, and references.
Frogwatch USA
A frog and toad monitoring program by the National Wildlife Federation in partnership with the United States Geological Survey.
FrogWeb
A multi-agency initiative that provides information about recent, global declines and deformities among amphibian populations.
Jurassic Frogs
Study on reconstructed skeleton of a frog that hopped among the dinosaurs nearly 200 million years ago.
Kentucky Frogs and Toads
Listing of the species of frogs and toads that inhabit Kentucky. Offers photographs of species, a range map, and sound files of their calls.
Nova Scotia Frogs
Photos and descriptions of species endemic to the region.
Order Anura
Description of the families of the order, including characteristics and behaviour.
Scientific American: Explaining Frog Deformities
An eight-year investigation into the cause of a shocking increase in deformed amphibians has sorted out the roles of three prime suspects.
Tadpoles of the United States and Canada: A Tutor
An approach to identifying frog larvae using characteristics of living tadpoles. Includes photographs.
Toronto Area Frogging
Volunteer to conduct an area frog survey or just look over the wealth of information available here.
Westward Frog!
Information about the frogs and toads of California and threats to the survival of the state's amphibians. Includes a bibliography of field investigation methods and a directory of researchers.
Whole Frog Project
An interactive frog dissection kit, movies, sounds, and information.