Crab: Animalia, Arthropoda, Crustacea, Mollusca, Truly Mollusca, Decapoda, Ventral Embryo Suborder, Hypostomia Short-tailed. It is a crustacean whose body is protected by a hard shell and breathes by gills. In biological taxonomy, it is the same kind of animal as shrimp, lobster and hermit crab.
The vast majority of species of crabs live in the sea or offshore areas, with some inhabiting freshwater or land. They depend on their mother crabs to give birth to their young, and each time she lays many eggs, which can number in the millions or more.
Crabs rely on geomagnetic fields for orientation. These organisms have a complex and highly variable number of genetic material, often as many as 100 pairs.
China's crabs are very rich in resources, with the lower reaches of the Yangtze River, the Gucheng Lake hairy crabs, Taihu Lake hairy crabs, Gaoyou Lake hairy crabs, Yangcheng Lake hairy crabs, Crab House hairy crabs, and the Hongze Lake hairy crabs produced for the top quality hairy crabs.
Expanded Information:
Buying Tips
1, see
Quality crab dorsal carapace shell is greenish-gray, glossy, white abdomen, clusters of golden claws with yellow hairs, bright color, umbilicus is rounded and convex outward. The crab's limbs are firmly connected in a curved shape, and it is big and old, but if the back is yellow, the meat is thin and weak.
2, weighing
The appearance of the crab by the eye meets the requirements, one by one with the hand to weigh its weight, feel heavy for the fat crab. This does not apply to river crabs and live sea crabs, which are often tied up.
3, peel
Peel the umbilical cover of the crab, if the shell of the crab yolk, neat, cohesive molding, the crab is a good crab.
Baidu Encyclopedia - Crabs