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Dryophytes gratiosus is the largest native tree frog in the United States, acquiring its name from the raucous and explosive call. [4] It is 5 to 7 cm (2.0 to 2.8 in) in head-body length. [5] It is variable in color, but easily recognizable due to the characteristic dark, round markings on its dorsum. Individuals may be bright or dull green ...
Acris crepitans paludicola. The northern cricket frog (Acris crepitans) is a species of small hylid frog native to the United States and northeastern Mexico. These frogs are majorly in grey, green, and brown color with blotching patterns. Many have a brown or orange stripe down the center of their back and a triangular marking on the top of ...
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 ...
Spring peeper. The spring peeper (Pseudacris crucifer) [3] is a small chorus frog widespread throughout the eastern United States and Canada. [4] It prefers permanent ponds due to its advantage in avoiding predation; however, it is very adaptable with respect to the habitat it can live in. In northern regions, the frog is able to endure below ...
The foothill yellow-legged frog (Rana boylii) is a small-sized (3.72–8.2 cm or 1.46–3.23 in) frog [2] from the genus Rana in the family Ranidae.This species was historically found in the Coast Ranges from northern Oregon, through California, and into Baja California, Mexico as well as in the foothills of the Sierra Nevada and southern Cascade Range in California.
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The Appalachian mountain chorus frog has a unique call. It is a faster, higher note, and holds a distinct quality and form. The repetitions are quicker and the pitch higher. It resembles the call of the Pacific chorus frog rather closely but is less clearly two syllabled. When a whole chorus of them are heard, one can tell them apart from other ...
Website. www.usgs.gov. The United States Geological Survey (USGS), founded as the Geological Survey, is an agency of the U.S. Department of the Interior whose work spans the disciplines of biology, geography, geology, and hydrology. The agency was founded on March 3, 1879, to study the landscape of the United States, its natural resources, and ...