Three ways to teach you to tell a male from a female.
1. Look at the crab belly
Male crabs have pointed umbilicus and a tapering triangle abdomen.
The female crab has a round navel and a round and wide abdomen.
Step 2 look at the crab legs
Male crabs have strong villi and large claw heads.
Female crabs have sparse villi and small claw heads.
Step 3 look at crab roe
Male crabs eat cream, and the color is white.
The mother crab eats yellow and golden gauze cotton.
As the saying goes, "nine females and ten males" and "gold and ninety silver" can only eat the freshest crabs in season.