Yes. Although they have hard exoskeletons in the front, the back half is soft much like a snail's body. There have been debates whether this animal is a mollusk or arthropod.
i dont really know
I think you mean hermet crabs. yes, a hermit crab female can kill a male if threatened. that is to say if you have crabs weak or strong enough to kill or be killed by one another.
Yes but you use a sponge and leave it there and it will use its long mouth to drink it.
Hermit crabs excrete is so small, you have to look hard to see it, hermit crabs store it in their shells then scoop it out. It is dry.
no. hermet crabs neeed water to live therefore it will not survive in a hamster cage.
Sea stars
clams crabs snails
European green crabs eat small crustaceans and mollusks
sorry but I'm not sure what ur sayin. im just going to say no because i have hermit crabs and i bet that they would fight a normal crab if it was smaller. hope this helped! :-D
They eat worms, mollusks and seaweed.
Crabs, worms, mollusks, prawns, and fish.
depending what kind of hermet crab you like to buy and where you live id say petland