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No subpopulations of amphibians have been evaluated by the IUCN. Additionally, 1193 amphibian species (16.4% of those evaluated) are listed as data deficient , meaning there is insufficient information for a full assessment of conservation status.
Family Ambystomatidae (mole salamanders) Reticulated flatwoods salamander (Ambystoma bishopi) VU; California tiger salamander (Ambystoma californiense) VU; Frosted flatwoods salamander (Ambystoma cingulatum) VU; Family Rhyacotritonidae (torrent salamanders) Olympic torrent salamander (Rhyacotriton olympicus) VU; Family Salamandridae (newts)
Endangered (EN) species are considered to be facing a very high risk of extinction in the wild. As of September 2021, the International Union for Conservation of Nature (IUCN) lists 1085 endangered amphibian species. [1] Of all evaluated amphibian species, 14% are listed as endangered. No subpopulations of amphibians have been evaluated by the ...
As of September 2021, the International Union for Conservation of Nature (IUCN) lists 3160 least concern amphibian species. [1] 38% of all evaluated amphibian species are listed as least concern.
As a general rule, salamanders with internal fertilization have indirect sperm transfer, but in species like the Sardinian brook salamander, the Corsican brook salamander, the Caucasian salamander and the Pyrenean brook salamander, the male transfer his sperm directly into the female cloaca.
Both males and females grow to an adult length of 24 to 40 cm (9.4 to 15.7 in) from snout to vent, with a total length of 30 to 74 cm (12 to 29 in), making them the fourth-largest aquatic salamander species in the world (after the South China giant salamander, the Chinese giant salamander and the Japanese giant salamander, respectively) and the ...
CENTRAL ILLINOIS (WCIA) — Over a century after it was last seen, an endangered species has been found alive in Central Illinois. The Salamander Mussel was last spotted in Central Illinois 120 ...
The Chinese giant salamander (Andrias davidianus) is one of the largest salamanders and one of the largest amphibians in the world. [4] It is fully aquatic, and is endemic to rocky mountain streams and lakes in the Yangtze river basin of central China. It has also been introduced to Kyoto Prefecture in Japan, and possibly to Taiwan.