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Frogs are valued as food by humans and also have many cultural roles in literature, symbolism and religion. They are also seen as environmental bellwethers, with declines in frog populations often viewed as early warning signs of environmental damage. Frog populations have declined significantly since the 1950s.
Anura is an order of animals in the class Amphibia that includes frogs and toads. More than 5,000 species are described in the order. The living anurans are typically divided into three suborders: Archaeobatrachia, Mesobatrachia, and Neobatrachia. This classification is based on such morphological features as the number of vertebrae, the ...
List of amphibians. The temnospondyl Eryops had sturdy limbs to support its body on land. Red-eyed tree frog (Agalychnis callidryas) with limbs and feet specialised for climbing. Japanese giant salamander (Andrias japonicus), a primitive salamander. The bright colours of the common reed frog (Hyperolius viridiflavus) are typical of a toxic species.
True frogs is the common name for the frog family Ranidae. They have the widest distribution of any frog family. They are abundant throughout most of the world, occurring on all continents except Antarctica. The true frogs are present in North America, northern South America, Europe, Africa (including Madagascar), and Asia.
The Frogs Portal. A frog is any member of a diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura (coming from the Ancient Greek ἀνούρα, literally 'without tail'). The oldest fossil "proto-frog" Triadobatrachus is known from the Early Triassic of Madagascar (250 million years ago), but ...
Genus Hemiphractus. Genus Stefania. Family Hemisotidae. Genus Hemisus - Shovelnose frog. Family Hylidae – including Cryptobatrachidae, Hemiphractidae. Genus Acris – Cricket frog. Genus Agalychnis. Genus Anotheca – Spiny-headed tree frog. Genus Aparasphenodon.
Hyloidea is a superfamily of frogs. [1] Hyloidea accounts for 54% of all living anuran species. [2] The superfamily Hyloidea branched off from its closest relative, the Australobatrachia, during the mid- Cretaceous. [3] The fossil evidence found during the Cretaceous-Paleogene extinction event could not determine the effects upon the frogs, due ...
Salamanders. Extinct species. Yunnan lake newt (Hypselotriton wolterstorffi) Ainsworth's salamander (Plethodon ainsworthi) Jalpa false brook salamander (Pseudoeurycea exspectata) Possibly extinct species. Admirable false brook salamander (Aquiloeurycea praecellens) Bolitoglossa nussbaumi. Tlapacoyan salamander (Chiropterotriton casasi)