Why do hairy crabs shed their shells during their growth?

Speaking of hairy crabs shelling, I believe everyone thinks it is a magical thing. Take off your whole shell and put on a new one. In our opinion, this may be a very painful thing, but it is something that hairy crabs have to experience during their growth. So why do Yangcheng Lake hairy crabs shed their shells? What is the reason why Yangcheng Lake hairy crabs shed their shells? Here is a brief introduction:

When hairy crabs shed their shells, their stomachs, gills and intestines also shed their old skins. After molting, the new body wrinkled in the old shell gradually stretches out and grows up. Usually, young crabs grow faster and molt more often. With the growth of individual crabs, the number of molting times decreases accordingly.

Young crabs that have just molted are weak and lack the ability of automatic feeding and protection.

I remember once seeing a joke that there was a crab walking in a hurry on the road, and the oncoming brother ignored it. Brother chased after the crab and asked, What's the matter? This crab whispered, I'm going to shell. By this time, the crab's shell has come out. It should quickly find a small hole in the same place and plug it up to avoid doing so.

This joke directly clarifies that hairy crabs are shelled, which is mixed in itself. After all, once shelled, the size will grow. In the future, hairy crabs will really be protected by animals, and there will be no chips for the outside world. If hairy crabs meet their natural enemies in the future, it is unlikely to make a living. It's simple. An enemy attack. After a day or two, the new shell gradually hardened, so the hairy crabs struggled for their livelihood once.