they are smaller because the males have to show their dominance!
No, they do not.
Not internally. They have what is called an exoskeleton. It's a sort of skeleton that covers the outside of the crab on his legs and head. This means that they have to shed this skeleton and regrow a new one as they get older so that they can get bigger.
Nothing, he's probably molting, so don't disturb him!
There are 4 calories in one clove of garlic.
Nipple rings can be purchased in many shops that sell sex toys and body jewelry. However, many people prefer to purchase them online, for the sake of privacy. Even Amazon sells some nipple rings, but there are numerous websites that sell a wider variety of body jewelry.