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Frog hearing and communication. Frogs and toads produce a rich variety of sounds, calls, and songs during their courtship and mating rituals. The callers, usually males, make stereotyped sounds in order to advertise their location, their mating readiness and their willingness to defend their territory; listeners respond to the calls by return ...
The cape rain frog or giant rain frog (Breviceps gibbosus) is a species of frog in the family Brevicipitidae. [2] Adults grow up to 45 mm in length. It was the first African frog species to be scientifically described by Carl Linnaeus in 1758, under the name Rana gibbosa. It is the most common and largest of rain frogs. [3]
Male Rana temporaria calling in a garden pond in Jambes, Belgium. The common frog or grass frog (Rana temporaria), also known as the European common frog, European common brown frog, European grass frog, European Holarctic true frog, European pond frog or European brown frog, is a semi-aquatic amphibian of the family Ranidae, found throughout much of Europe as far north as Scandinavia and as ...
The desert rain frog, web-footed rain frog, or Boulenger's short-headed frog (Breviceps macrops) is a species of frog in the family Brevicipitidae. It is found in Namibia and South Africa. [1][2][3] Its natural habitat is the narrow strip of sandy shores between the sea and the sand dunes. [4] This area is characteristic of loose sand and ...
The Pacific tree frog (Pseudacris regilla), also known as the Pacific chorus frog, has a range spanning the Pacific Northwest, from Northern California, Oregon, and Washington to British Columbia in Canada and extreme southern Alaska. [2] They live from sea level to more than 10,000 feet in many types of habitats, reproducing in aquatic settings.
Anura. In frogs and toads, the tympanum is a large external oval shape membrane made up of nonglandular skin. [2] It is located just behind the eye. It does not process sound waves; it simply transmits them to the inner parts of the amphibian's ear, which is protected from the entry of water and other foreign objects. [3]
The bird-voiced tree frog is a small species growing to about 5 cm (2.0 in) long. It is usually a dappled, pale grey or brown on its dorsal surface, but its color changes with the temperature and its level of activity, and may be more or less pale green. It often has a dark brown cross-shaped mark on its back and further dark areas on its limbs.
The American bullfrog (Lithobates catesbeianus), often simply known as the bullfrog in Canada and the United States, is a large true frog native to eastern North America. It typically inhabits large permanent water bodies such as swamps, ponds, and lakes. Bullfrogs can also be found in manmade habitats such as pools, koi ponds, canals, ditches ...