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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 ]
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). While extant species are only known from East Asia , several extinct species in the genus are known from late Oligocene and Neogene aged fossils collected in Europe and North America ...
Most salamanders lack vocal cords, but a larynx is present in the mudpuppy (Necturus) and some other species, and the Pacific giant salamanders and a few others have a large larynx and bands known as plicae vocales. [27] The California giant salamander can produce a bark or rattle, and a few species can squeak by contracting muscles in the ...
The giant salamander was identified using DNA by staff at the Zoological Society of London and the Natural History Museum. Newly discovered giant salamander is ‘world’s largest amphibian ...
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 ...
The largest South China giant salamander, which researchers said is likely the largest amphibian ever recorded, lived during the first half of the 20th century and was housed at the London Zoo for ...
Salamanders lack claws, have scale-free skins, either smooth or covered with tubercles, and tails that are usually flattened from side to side and often finned. They range in size from the Chinese giant salamander ( Andrias davidianus ), which has been reported to grow to a length of 1.8 metres (5 ft 11 in), [ 52 ] to the diminutive Thorius ...