Thick skin: Up to 5 cm (2 inches) thick.
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Thick skin: Up to 5 cm (2 inches) thick.
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Thick skin: Tough, armored, and scaly with bony plates (osteoderms) beneath.
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Thick skin: Covered with bony, armored plates.
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Thick skin: Shielded by a hard shell made of keratin (same material as human nails).
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Thick skin: Covered in tough, overlapping keratin scales.
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Thick skin: Their skin is quite tough, especially on the back and shoulders.
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