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The world's largest frog is the goliath frog of West Africa—it can grow to 15 inches (38 centimeters) and weigh up to 7 pounds (3.2 kilograms). One of the smallest is the Cuban tree toad, which ...
Hyloscirtus tolkieni, commonly known as the Río Negro stream frog, is a recently described (2023) species of frog in the family Hylidae. It is endemic to the Andes Mountains in Ecuador, where it has been observed at 3190 meters above sea level.
Strongylopus are small to medium-sized frogs: adult snout–vent lengths are typically in the range of 25–53 millimetres (0.98–2.09 in). [2] Species within this genus may be found at altitudes from sea level up to 3250 m in elevation.
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 .
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.
Adult frogs live in fresh water and on dry land; some species are adapted for living underground or in trees. Frogs typically lay their eggs in the water. The eggs hatch into aquatic larvae called tadpoles that have tails and internal gills. They have highly specialised rasping mouth parts suitable for herbivorous, omnivorous or planktivorous ...
In 2017 it was discovered that frogs have kneecaps, contrary to what was thought. This raises the possibility that the kneecap arose 350 million years ago when tetrapods first appeared, but that it disappeared in some animals. [10] [11]
These frogs are found from sea level to elevations of around 200 metres. [5] Its natural habitats are subtropical or tropical moist lowland forests , rivers , swamps , freshwater marshes , intermittent freshwater marshes, arable land , plantations , rural gardens, urban areas , heavily degraded former forest, ponds , and canals and ditches.