Toad can refer to a number of species of amphibians.
A distinction is often made between frogs and toads on the basis of their appearance, prompted by the convergent adaptation among so-called toads to dry environments, which often entails a brown skin for camouflage that is also dry and leathery for better water retention. Many so-called toads also burrow, which requires further specific adaptations. However, since these adaptations merely reflect the environment a species has adapted to, they offer no reliable guidance as to what other species it evolved from. Since taxonomy is meant to only reflect these evolutionary relationships, the aforementioned distinction of frogs and toads gives no clue to their classification.
For instance, many members of the families Bombinatoridae, Discoglossidae, Pelobatidae, Rhinophrynidae, Scaphiopodidae, and some species from the Microhylidae family are commonly called "toads". However, the only family exclusively given the common name "toad" is Bufonidae, the "true toads". Some "true frogs" of the genus Rana, have also adapted to burrowing habits, while the species within the toad genus Atelopus are conversely known by the common name "harlequin frogs."
More on [ Toad ]

Action Plan for Australian Frogs - Commissioned to gain an overview of the current conservation status of Australia's frog species, to investigate the possible causes of decline and to determine the actions needed to prevent further losses and to reverse current declines.
Meta Description: [ Action plans and conservation overviews are major documents that have been produced by the Department since the commencement of the Endangered Species Program in 1989. ]
Bog Frog - The Water Federation provides information about amphibian declines, explaining that because frogs are often among the first to croak when ecology is upset, they act as an indicator species for the health of the ecosystem.
Deformed Frogs in Minnesota - The Minnesota Pollution Control Agency are studying deformed frogs to determine the cause of the deformities.
Meta Description: [ Information about Deformed Frogs in Minnesota on the Web Site for the Minnesota Pollution Control Agency ]
Frogs - An overview on the decline and conservation of frogs in Australia.
Meta Description: [ The Australian Government is working in partnership with state, territory and local governments, non-government organisations, tertiary institutions and community groups to ensure the protection of our native species. ]
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Frogs and Toads of Tennessee - Descriptions and photos of species found in this southeastern U.S. state.
Meta Description: [ TWRA - The offical State of Tennessee Web site about Tennessee's hunting, fishing, and boating opportunities, license requirements, and regulations. Full of information for hunters, anglers, kids, and wildlife enthusiasts. ]
Hop to It - Irish frog survey organised by the Irish Peatland Conservation Council to find out more about the status of the frog in Ireland.
Missouri's Toads and Frogs - Missouri toads and frogs are colorful, harmless, vocal and valuable. Our forests, prairies, rivers, swamps and marshes are home to a multitude of toads and frogs, but few people know how many varieties we have, how to tell them apart, or much about their natural history.
Meta Description: [ Missouri toads and frogs are colorful, harmless, vocal and valuable. ]
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Northern Leopard Frog - A description of the leopard frog [Rana pipiens].
Meta Description: [ A description of the Leopard Frog [rana pipiens] and Frog Links ]
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Westward Frog - While there is no established cause of amphibian decline, there are many factors known to be potentially detrimental. Here we provide bibliographies for those interested in learning more about these factors. When possible, technical and/or literature reviews are also included.
Wetland Science Institute - The use of constructed wetlands in agricultural environments as breeding habitat for frogs.
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