La Plata three-banded armadillo | Smithsonian’s National Zoo and Conservation Biology Institute https://nationalzoo.si.edu/animals/la-plata-three-banded-armadillo
La Plata three-banded armadillos, also known as southern three-banded armadillos, are the only armadillo that can curl up into a complete ball. Native to South America, they are also one of the only armadillos that are not good diggers.
all the way until their armor forms a trap that snaps closed on their predator’s hand