Frogs and toads are the most diverse and widespread of the three amphibian orders. Unlike the other amphibians, adult frogs and toads have no tails but they do have many adaptations to jumping, for example long hind legs, elongated ankle bones and a short vertebral column. Many frogs contain mild toxins, but some, such as the poison dart frogs, are deadly.
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Frogs challenge their hopping reputation.
This sequence uses a variety of techniques to show the diversity in size, shape and ability of the most successful group in the amphibian order: frogs and toads. Juxtaposing Sir David with a tiny Madagascan pygmy frog sets off its diminutive size and slow motion shows in great detail how frogs put their particular bodily adaptations to locomotive use.
Australian spadefoot toads rise like zombies at the first rain.
Australian spadefoot toads rise like zombies at the first rain.
Frogs use an unusual strategy to escape from predatory egrets.
Frogs use an unusual strategy to escape from predatory egrets.
The shading illustrates the diversity of this group - the darker the colour the greater the number of species. Data provided by WWF's Wildfinder.
The Frogs and toads can be found in a number of locations including: United Kingdom, Wales, Ynys-hir nature reserve. Find out more about these places and what else lives there.
Learn more about the other animals and plants that also form these fossils.
Frogs are amphibians in the order Anura (meaning "tail-less", from Greek an-, without + oura, tail), formerly referred to as Salientia (Latin salere (salio), "to jump"). Most frogs are characterized by a short body, webbed digits (fingers or toes), protruding eyes and the absence of a tail. Frogs are widely known as exceptional jumpers, and many of the anatomical characteristics of frogs, particularly their long, powerful legs, are adaptations to improve jumping performance. Due to their permeable skin, frogs are often semi-aquatic or inhabit humid areas, but move easily on land. They typically lay their eggs in puddles, ponds or lakes, and their larvae, called tadpoles, have gills and develop in water. Adult frogs follow a carnivorous diet, mostly of arthropods, annelids and gastropods. Frogs are most noticeable by their call, which can be widely heard during the night or day, mainly in their mating season.
The distribution of frogs ranges from tropic to subarctic regions, but most species are found in tropical rainforests. Consisting of more than 5,000 species described, they are among the most diverse groups of vertebrates. However, populations of certain frog species are declining significantly.
A popular distinction is often made between frogs and toads on the basis of their appearance, but this has no taxonomic basis. (Members of the anuran family Bufonidae are called true toads, but many species from other families are also called toads.) In addition to their ecological importance, frogs have many cultural roles, such as in literature, symbolism and religion, and they are also valued as food and as pets.
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