1, crab yolk: crab cooked, open the abdomen crab cover, inside the yellow, orange-yellow material, is the crab yolk, crab yolk is unique to the female crab body ovaries, egg cells, and a small portion of the internal organs, which is rich in protein, fat, phospholipids, and calcium and other minerals, not only tasty and delicious, nutritional value is also very high.

2, crab egg package: If the crab under the abdomen outside the yellow material, may be the crab egg package. The eggs laid by female crabs will stick to the rear abdomen of female crabs for incubation, which will form the crab egg package, and it is recommended to remove the crab egg package before consumption.

Expanded Information:

The crab belongs to the class Mollusca, order Decapoda, and is a crustacean whose body is protected by a hard shell and which 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. Common crabs include pike crabs, distant sea pike crabs, green crabs and Chinese mitten crabs (river crabs, hair crabs, clear water crabs).