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File-Class amphibian and reptile articles of NA-importance (81 P) Pages in category "File-Class amphibian and reptile pages" The following 81 pages are in this category, out of 81 total.
Pages in category "Portal-Class amphibian and reptile pages" The following 14 pages are in this category, out of 14 total. This list may not reflect recent changes .
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Amphibian Species of the World 6.2: An Online Reference (ASW) is a herpetology database. It lists the names of frogs, salamanders and other amphibians , which scientists first described each species and what year, and the animal's known range.
AmphibiaWeb's goal is to provide a single page for every species of amphibian in the world so research scientists, citizen scientists and conservationists can collaborate. [1] It added its 7000th animal in 2012, a glass frog from Peru. [2] [3] As of 2022, it hosted more than 8,400 species located worldwide. [4] [5]
Found at latitudes up to 71° N, it is the northernmost wild amphibian species. [4] Favoring lowlands, it is seldom encountered at elevations of more than 600 m. [1] A habitat generalist, Rana amurensis favors open ground, but is also found in both deciduous and coniferous forests. In the winter, it hibernates on pond bottoms.
Amphibians such as frogs have three kinds of star-shaped chromatophore cells in separate layers of their skin. The top layer contains ' xanthophores ' with orange, red, or yellow pigments; the middle layer contains ' iridophores ' with a silvery light-reflecting pigment; while the bottom layer contains ' melanophores ' with dark melanin.
Reptiles originated from amphibians in the Carboniferous period, being the first animals to possess well-developed lungs. They are characterized by a tough and generally scaly skin. In Cantabria there are two orders of reptiles: Testudines (turtles and chelonians) and Squamata (squamates), which group together twenty-seven different reptile ...
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