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The oldest fossil "proto-frog" Triadobatrachus is known from the Early Triassic of Madagascar (250 million years ago), but molecular clock dating suggests their split from other amphibians may extend further back to the Permian, 265 million years ago. Frogs are widely distributed, ranging from the tropics to subarctic regions, but the greatest ...
North America has many species of the family Hylidae, including the gray tree frog (Hyla versicolor) and the American green tree frog (H. cinerea). The spring peeper ( Pseudacris crucifer ) is also widespread in the eastern United States and is commonly heard on spring and summer evenings.
One study finds that there are at least 31 tree frog species of the genus Hyla (or Dryophytes) in North America, Central America, and Eurasia. Examples include both the H. gratiosa and H. walkeri . While many tree frogs reside in the New World , a notable number of frogs inhabit the Eurasian continent and display unique biogeographic patterns ...
Frogs from the Microhylidae occur throughout the tropical and warm temperate regions of North America, South America, Africa, eastern India, Sri Lanka, Southeast Asia, New Guinea, and Australia. Although most are found in tropical or subtropical regions, a few species can be found in arid or nontropical areas.
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.
The frogs are large, have powerful leaps, and inevitably escape after which they may wreak havoc among the native frog population. [49] Countries that export bullfrog legs include the Netherlands, Belgium, Mexico, Bangladesh, Japan, China, Taiwan, and Indonesia. Most of these frogs are caught in the wild, but some are raised in captivity.
Eleven endangered male frogs that traveled 7,000 miles in a bid to save their species from extinction have “given birth” to 33 froglets at London Zoo. Endangered frog daddies transported 7,000 ...
Pseudacris (commonly known as the chorus frogs) is a genus of frogs in the family Hylidae found in North America ranging from the Pacific coastline to the Atlantic.. The name of the genus comes from the Greek pseudes (false) and akris (), probably a reference to the repeated rasping trill of most chorus frogs, which is similar to that of the insect.