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Frog populations have declined dramatically since the 1950s. More than one-third of frog species are considered to be threatened with extinction, and more than 120 species are believed to have become extinct since the 1980s. [202] Among these species are the gastric-brooding frogs of Australia and the golden toad of Costa Rica.
Rana (derived from Latin rana, meaning 'frog') is a genus of frogs commonly known as the Holarctic true frogs, pond frogs or brown frogs. Members of this genus are found through much of Eurasia and western North America. Many other genera were formerly included here. [1][2] These true frogs are usually largish species characterized by their ...
Nyctixalus flavosignatus — Dubois, 1981. Theloderma margaritifer (Boulenger, 1882) [1] Nyctixalus margaritifer, also known as the Java Indonesian treefrog and pearly tree frog, is a species of frog in the family Rhacophoridae. [1] [2] It is endemic to Java, Indonesia, where it is known from a number of records at elevations above 700 m (2,300 ...
Typically, true frogs are smooth and moist-skinned, with large, powerful legs and extensively webbed feet. The true frogs vary greatly in size, ranging from small—such as the wood frog (Lithobates sylvatica)—to large. Many of the true frogs are aquatic or live close to water. Most species lay their eggs in the water and go through a tadpole ...
A new species of frog has been officially confirmed, close to 80 years after its existence was first theorized. The frog, Rana kauffeldi, is a type of leopard frog, and the process of establishing ...
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 ...
Rana clamitans Latreille, 1801[2][3][4] Lithobates clamitans[5] or Rana clamitans, [2][6][7] commonly known as the green frog, is a species of frog native to eastern North America. The two subspecies are the bronze frog and the northern green frog. These frogs, as described by their name, typically have varying degrees of green heads.
Description. Females are much larger than males, reaching up to 10.5 cm and 230 g in weight (6.5 cm and 41 g for males). [3] Tomato frogs live up to their name by possessing a vibrant, orange-red colour. [4] Females have brighter tones of red or orange on their back, with a pale undersurface.