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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 ...
A 30-year-old giant salamander in a German zoo. Both sexes maintain a territory, averaging 40 m 3 (1,400 cu ft) for males and 30 m 3 (1,100 cu ft) for females. [6] The reproductive cycle is initiated when the water temperature reaches 20 °C (68 °F) [6] and mating occurs between July and September. [27]
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 ]
Cope's giant salamander (Dicamptodon copei) is a species of salamander in the family Dicamptodontidae. [5] It reaches between 12.4–19.1 cm (4 + 7 ⁄ 8 – 7 + 1 ⁄ 2 in). The salamander resembles Pacific Giant Salamander larvae, but it never transforms to a terrestrial stage. It is smaller overall with a narrower head and shorter limbs.
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 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 ...
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 ...
The adult California giant salamander can reach 17–30.5 cm (6.7–12 inches) in total length (including tail). Like most salamanders, the California giant salamander has four toes on the front feet and five toes on the back feet.