Animal Armour
Available on CuriosityStream, Prime Video, Tubi TV, Curiosity Stream
There are many ways to defend yourself, you can run, fly, fight, but some animals have changed their entire body plans so they don't have to. Tortoises carry a fortress with them, armadillos can roll into a ball, sunfish have bulletproof thick skin, and echidnas are covered in spines.

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