The horse dung sea urchin is bitter to the female sea urchin and sweet to the male sea urchin. Some people say it is because of the water quality problem in Qingdao. Too sweet is bitter.

As for how to distinguish between men and women, it is very simple. The yellow one is female, and the relatively white one is male. ; In the photo, the upper right corner is all women, the lower right corner is all men, and the upper left corner is both men and women.