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Moor frogs from European Russia and Western Siberia are able to tolerate freezing to temperatures as low as -16 °C. Moor frogs from Denmark are only able to survive freezing temperatures as low as -4 °C for 3 to 4 days. The minimum freezing temperatures at which frogs are able to survive with 0% mortality is different between frog populations.
The crab-eating frog (Fejervarya cancrivora) is a frog native to south-eastern Asia including Taiwan, [2] China, Sumatra in Indonesia, [3] the Philippines and more rarely as far west as Orissa in India. [4]
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.
When studying ice concentration of overwintering frogs, 40-50% of total body water was frozen. [14] Studies have revealed that Cope's gray treefrog could be more resilient to climate change in the long-term, though populations may suffer short-term drawbacks. [15] Either way, distribution will hopefully change little in the long-term because of ...
The following is a list of amphibians of Java and Bali, Indonesia from Iskandar (1998). [1] There is a total of 41 amphibian species in Java, 9 of which are endemic to Java. In Java, amphibian species commonly collected for human consumption include Limnonectes macrodon , Fejervarya cancrivora , Fejervarya limnocharis , and Fejervarya iskandari .
Similar to other burrowing frogs, American spadefoot toads are about 2-3 inches in length with round, stocky bodies and eyes that bulge from their heads. The name "spadefoot" is derived from the keratinous bone in its hind legs that allow it to burrow within soil. The skin of the toad is grey or brown in appearance and smooth to the touch.
"Fewer than a dozen of the 6455 species of frogs in the world are known to have internal fertilization, and of these, all but the new species either deposit fertilized eggs or give birth to froglets."
The marsh frog is the largest type of frog in most of its range, with males growing to a size around 100 mm (3.9 in) SVL and females slightly larger (4 in) SVL. [4] There is a large variation in colour and pattern, ranging from dark green to brown or grey, sometimes with some lighter green lines; a lighter line on the back is generally present.