Others images you might consider... The crab with the shells picture A crab is a sea animal with a flat body covered by a shell and five pairs of curved legs. The front two legs have long claws, called pincers, on them. The crab with the shells picture A crab is a sea animal with a flat body covered by a shell and five pairs of curved legs. The front two legs have long claws, called pincers, on them. The crab with the shells picture A crab is a sea animal with a flat body covered by a shell and five pairs of curved legs. The front two legs have long claws, called pincers, on them. The crab with the shells picture A crab is a sea animal with a flat body covered by a shell and five pairs of curved legs. The front two legs have long claws, called pincers, on them. The crab with the shells picture A crab is a sea animal with a flat body covered by a shell and five pairs of curved legs. The front two legs have long claws, called pincers, on them.