I have crabs. Two land hermit crabs. I've owned plenty of hermit crabs since grade school, and it's been about a three year break until recently. The new crabs were gifts from some very awesome people. I've had my first (and largest) one since the last week of March, and my smallest one since the first week of April this year. I have no idea where the larger one came from, but the tiny one came from a Petsmart near the school that I work at. They're both cute and nameless, and I love them both.
My roommate and I would take a gander into their cage, and coo at their very crazy crab antics. After a few months of observation, I've noticed that both crabs have some sort of love/hate relationship going on. One minute the larger one is poking at the smaller one with its claw, and then they get all snuggled up in one of the corners of the cage. Aw.
About a month ago, I started to wonder when my hermit crabs were going to molt and switch shells. I've never seen a crab molt while it was in my possession, and I began to get a little worried about that, since molting is a pretty big thing and a crab's survivability can be stunted if it doesn't molt in the right conditions. After doing some research, I bought lots of Calci-Sand (edible calcium substrate), coconut bark (for keeping the humidity high), and a humidity gauge. I was waiting for one of those suckers to start molting. I was anxious to find out when, where, and how it goes about shedding its exoskeleton.
Nearly a month goes by and nothing happens. I shrug it off. I figured it'll happen when it's ready.
Apparently, one of the crabs were ready today. I present to you, the Naked Crab.

I came home from work and there it was, in the corner of the cage, all balled up. I wasn't really freaking out, but it really did surprise me to see the tiny crab all curled up in the corner with its exoskeleton shoved to the side. It was flush pink, and very still. (It's a lot more pink than it appears in the picture.) The larger crab was near it, practically guarding the little crab from within the water dish. It was very alert. It also scuttled about as if it didn't really know what to do with itself. I decided to hide the crab by placing a piece of balsa wood in the corner to create a little cave that the larger crab can't get into.
I've since checked up on the crabs, and the larger crab is now perched on top of the balsa wood like a gargoyle. The little crab moved a little bit, but didn't leave the covered area. It'll take a couple of days for its exoskeleton to harden. In the meantime, I'll buy some extra shells. I already have one for the smaller crab, but I'm not sure if it is going to try it on and keep it.
The joy of land hermit crab ownership. Fills me with joy, it does.