apparently form November to may, what a bummer, i really wanted to throw out a trap soon!
as long as you want mon
However long they feel like it
It's probably dead
A long clawed hermit crab protects itself by hiding in it's protective shell or fighting back with its claws, or by putting its body in its hard shell.
12 hours
12 hours
14 days
It depends what type of crab they are. Most have claws and are small, but there are some that are huge and bigger than an average man.
The shell that the hermit crab adopts and wears and changes many times throughout his decades long lifetime helps him in several ways. The hermit crab has a very delicate abdomen that is protected by the shell. Without this shell, his abdomen could become punctured very easily and the crab would die. The hermit crab also carries water in his shell to keep the abdomen moist. If it were to dry out, again, the hermit crab would die. The crab balances the salinity of the water within his shell by accessing fresh or salt water as needed. The shell is also his shelter, and protects him from predators. The ideal fitting shell will allow the hermit crab to pull fully inside and to block off the opening with his large pincer.
It will either stay out of it's shell or have a shell fight with another crab to take its shell. I do not recommend letting your crab have no shell for very long though, it makes them very vulnerable and stressed out making them a good target for other crabs to harm.
They protect themselves from predators by using their shell. They can use their pincers to fight, or they hide in their shells.
A hermit crabs abdoman is long and soft. They insert it into the shell, and wrap it around the inside. They can change out of it any time they want.
I was just looking for this too. I believe you may be thinking of a horseshoe crab, it has a long tail like the stingray and has a shell.