armor

Animal armor refers to natural protective coverings or defenses that help animals survive. This can include external structures like shells, carapaces, or hardened epithelial layers, as seen in mollusks such as snails and crabs. Some animals, like skunks, use chemical defenses, such as foul-smelling fluids, as their primary armor. Other protective mechanisms include the ability to withdraw into a shell, firm adhesion to surfaces, burrowing, or secreting mucus or noxious chemicals to deter predators. In some cases, skeletal elements like scales, spines, or even the bones of a skull serve as protective armor.1234