The giant salamander mainly eats fish, frogs, crabs, snakes, shrimps, earthworms and aquatic insects. Giant salamanders have poor eyesig
The giant salamander mainly eats fish, frogs, crabs, snakes, shrimps, earthworms and aquatic insects. Giant salamanders have poor eyesight. They perceive external information mainly through smell and touch. They can also sense the vibration in the water through warts on their skin, and then catch fish, shrimp and insects in the water. Giant salamander is at the top of the food chain in its ecosystem. They eat a lot and mainly prey on fish, crustaceans, amphibians and small arthropods in the water.
Giant salamander likes to prey on crabs. There are 6 crabs in the stomach of an individual weighing 1.5 kg, with a total weight of about140g; 2.5 kg individuals can swallow 250 ~ 300 grams of food at a time; A giant salamander weighing 1 oyster was found in Mabian county, Sichuan province, and there was a fish weighing 0.5 kg in its stomach. There is also a small amount of plant components in the stomach of giant salamander, which lives in the habitat of giant salamander in the Yangtze River valley, including white turtle, wide-lipped fish, ray fish and other fish, providing a wide range of prey for giant salamander.
The metabolism of giant salamander is slow. After stopping eating for half a month, it still has undigested food in its stomach. Its hunger tolerance is very strong, as long as it is put in clean and cool water, it will not starve to death if it is not fed for several months or even more than one year.
The length of giant salamander is generally about 1 m, the longest is 2 meters, and the weight is 20-25 kg, and the maximum is 50 kg. The giant salamander generally lives in the mountains, rivers and lakes with fast flowing water, cool water quality, lush aquatic plants and many crevices and caves, and sometimes moves along the shore. With the destruction and loss of giant salamander habitat, the number of wild giant salamander is extremely rare.