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An armadillo's armor is part of its skin

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Most heavily armored animals possess external shells fully separated from their skin, but the armadillo entirely compromised. Its defensive armor is comprised of rigid bony plates fully integrated directly into the dermal layer. It essentially walks around wearing heavily calcified skin flaps, providing a terrifyingly rigid yet surprisingly flexible defense mechanism.

An armadillo's armor is part of its skin
STACKY / Science
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