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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.
They are the only frogs that go "ribbit". [16] They come in shades of greens or browns and can change colors over periods of hours and weeks. Family: True Frogs Ranidae. Cascades Frog (Rana cascadae) is a species of frog in the family Ranidae that is found in western United States and possibly Canada, mainly in the Cascade Range and Olympic ...
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 .
Conlon, J. Michael, et al. “Peptide defenses of the Cascades frog Rana cascadae: implications for the evolutionary history of frogs of the Amerana species group”. Peptides Vol. 28 Issue 6. (June 2007):1268-1274; Davidson, Carlos. Booklet to the CD Frog and Toad Calls of the Pacific Coast - Vanishing Voices. Cornell Laboratory of Ornithology ...
Hylarana tytleri is a frog species in the family Ranidae. It is found in eastern and northeastern India , Myanmar , Bangladesh , and southern Nepal , and possibly at lower elevations in Bhutan . [ 2 ] [ 3 ] It was formerly placed in Rana , and included in the common green frog ( H. erythraea ).
Lithobates sphenocephalus [1] [3] or Rana sphenocephala, [4] [5] [6] commonly known as the southern leopard frog, is a medium-sized anuran in the family Ranidae (the true frogs). The southern leopard frog is one of the 36 species currently or formerly classified in the Rana genus found in North America. [ 7 ]
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The Greek stream frog, or simply Greek frog (Rana graeca), is a species of frog in the family Ranidae found in Albania, Bosnia and Herzegovina, Bulgaria, Greece, North Macedonia, Serbia, Montenegro and Turkey. Its natural habitats are temperate forests, temperate grassland, rivers, intermittent rivers, freshwater springs, and pastureland.