The crab is an animal that belongs to the water world. They are found in oceans, freshwaters, and lands as well. They have an exoskeleton covering their entire body. They vary in size all over the world. They are active animals with complex behavior. They are eaten as a dish in different parts of the world as a special item from seafood. These lovely images of crabs collected for you are the best ones you can find to make your computer screens lovely and colorful at the same time.