• Armadillos are the only mammal with a shell
• When threatened, the three-banded armadillo has the habit of rolling into a ball. Although this is a behavior commonly attributed to armadillos, only the two species of Tolypeutes can curl up into a perfect ball.
• After mating, the females of some species can delay pregnancy when conditions will be better for her offspring, like when there will be more food available. Under stressful conditions, the offspring can be born more than two years after mating occurred!
• Newborns are called pups
• The Aztecs called the armadillos “azotochtli”, which means “turtle-rabbit” in their native language