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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 ]
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]
Pacific giant salamanders are defined by their wide protruding eyes, costal grooves, thick arms, and dark background coloring. Dicamptodon have a snout-vent-length (SVL) of 350 mm (14 in), a broad head, laterally flexible flattened tails, paired premaxillae that are separate from the nasals, and the aquatic larvae have gills.
Some California giant salamander larvae continue to grow into adults and become sexually mature without losing their external gills. This process is called neoteny . Adult-sized neotenes have a uniform brown coloring on their heads, sides, and backs and retained external gills which allow them to live in perennial streams as aquatic adults.
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 ...
Scientists have determined that a giant salamander previously housed at the London Zoo not only represents a newly discovered species — it's also likely the largest amphibian known to man.
The Qimen giant salamander (Andrias cheni) is a species of giant salamander in the family Cryptobranchidae. [1] It is endemic to Anhui Province, China, where it inhabits streams and caves in the Huangshan Mountains. The species name honors Pihui Chen, a herpetologist at Anhui Normal University.
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