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The outer covering of a prawn in a shell.
Crayfish are crustaceans, and therefore have a shell-like outer covering called an exoskeleton.
Sea Turtles are covered and protected by shells, similar to every other species of Turtle.
A lot of animals have hard body covering which makes them hard to become prey. However, animals such as hippopotamus, rhinoceros, and elephants have a hard cover of skin on their body.
shell
The integumentary system consists of the body's outer covering, also known as skin.
A shell
A shell
A hard shell
it is a scaly outer covering i think
A Shell