crabs are members of the class crustacea and are known for their hard shelled bodies and specific anatomy

gastronomylatin namecrustacea ecosystems crustacea important predators specific numerous members shelled anatomy inhabit coastal playing serving variety species fishing bodies marine shapes crabs class areas sizes hard deep role food sea crab crustaceans ecosystem shell biodiversity crustacean nature conservation ocean flora fauna habitat 3d 4k 8k wallpaper background landscape