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Japanese giant salamanders in Tottori Prefecture, Japan, showing notable color variation among individuals within the same population. Andrias japonicus skull. The Japanese giant salamander (Andrias japonicus) is a species of fully aquatic giant salamander endemic to Japan, occurring across the western portion of the main island of Honshu, with smaller populations present on Shikoku and in ...
The Japanese giant salamander (Andrias japonicus) reaches up to 1.44 m (4.7 ft) in length, feeds at night on fish and crustaceans, and has been known to live for more than 50 years in captivity. [ 2 ]
Andrias is a genus of giant salamanders.It includes the largest salamanders in the world, with A. japonicus reaching a length of 1.44 metres (4 ft 9 in), and A. sligoi reaching 1.80 metres (5 ft 11 in).
This list of amphibians recorded in Japan is primarily based on the IUCN Red List, which details the conservation status of some ninety-four species. [1] Of these, four are assessed as critically endangered (the endemic Amakusa salamander, Mikawa salamander, Tosashimizu salamander, and Tsukuba clawed salamander), twenty-seven as endangered, fourteen as vulnerable, eleven as near threatened ...
Visitors will go up to the eighth floor on the escalator, passing through the Aqua Gate, a tunnel tank with various tropical fish. After exiting the escalator is the Japan Forest, which recreates a Japanese forest and holds Asian small-clawed otters, Japanese giant salamanders, black-crowned night herons and many other native freshwater animals.
Other closely related salamanders in the same family are in the genus Andrias, which contains the Japanese and Chinese giant salamanders. The hellbender is much larger than any other salamander in its geographic range, and employs an unusual adaption for respiration through cutaneous gas exchange via capillaries found in its lateral skin
Japanese giant flying squirrel; Japanese grass vole; Japanese hare; ... Japanese giant salamander; Montane brown frog; Japanese fire belly newt; Japanese tree frog;
Giant salamanders are obligate paedomorphs with partial metamorphosis, [2] but Asiatic salamander goes through a full metamorphosis. The only known exceptions are the Longdong stream salamander , which has been documented as facultatively neotenic, and the Ezo salamander , where a now assumed extinct population from Lake Kuttarush in Hokkaido ...