The Canadian Amphibian and Reptile Conservation Network (CARCN) provides information on the biology and conservation of Canada's frogs, toads, and salamanders. Four sections form the substance of the site: Amphibian Biology, Key to Canadian Amphibians, Tour of Canadian Amphibians, and Amphibian Decline Issues. Descriptive information includes frog calls and distribution maps, as well as photographs of species. Additional sections describe CARCN and challenge users to test their knowledge via The Great Canadian Amphibian & Reptile Quiz.