The head is big, flat and wide, and the head length is slightly larger than the head width; The anus of male giant salamander is raised, oval, with large anal orifice and milky white particles on the inner wall; The anus of the female giant salamander has no uplift, the anal orifice is small, the periphery is sunken inward, the inner wall of the orifice is smooth, and there are no milky white particles.
Adult giant salamanders usually inhabit streams and caves in deep pools of rivers below 1000 meters above sea level, especially the caves above and below the beach mouth, and have a wide range of food habits, mainly feeding on crabs, frogs, fish, shrimps, aquatic insects and their larvae.
Extended data
The main value of giant salamander:
1, medicinal and economic value: the giant salamander has great economic value, and people will catch the giant salamander and eat it to strengthen their physique, which can effectively prevent and treat anemia, menstrual disorders and other diseases; The skin of giant salamander is thick and tough, which can be used for tanning. Can also be made into medicine for treating burn; It can also treat children's stomach diseases such as hiccups; Bile can relieve fever and improve eyesight.
2. Scientific research value: The giant salamander is an original amphibian species, which has certain value in the research and teaching of animal evolution. It is an ornamental animal in the zoo.
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