2. Crab yellow is unique to female crabs.

3. Some people want more crab roe in hairy crabs, and it is difficult to buy a male crab or a female crab. In fact, if you want to eat crab roe, you must buy a female crab. The male crab has no crab roe, and the part corresponding to the female crab roe in the male crab is white crab paste.

4. Distinguishing the male and female of hairy crabs is mainly to observe the navel of hairy crabs in appearance. The female crab has a round navel, and the cover under her belly is relatively wide, while the male crab has a pointed navel and a thin triangular cover under her belly.