A unique feature of them is that the female armadillo usually gives birth to identical quadtruplets, a feature that can be useful in genetic research. There are only two mammalian species that carry Hansen's disease (leprosy): humans and armadillos. Approximately 20% of armadillos carry the bacillus for Hansen's disease, and it is a vector for Hansen's disease in humans. It is also a possible source of Chagas disease.
The armadillo's original range was South America; but with the opening of the land bridge between South and North America in the Cenozoic era, this expanded their range. Presently they are in the Texas, Oklahoma, Kansas, and the Southern states as far as the Atlantic Ocean. Potentially, they may migrate into North Carolina, Virginia, most of Pennsylvania, and even possibly coastal New York and Connecticut. Imagine armadillos in Central Park or on the White House lawn! That could disrupt the annual Easter egg roll.
On the other hand, don't look for armadillos to infiltrate the coffee houses of Seattle or run amok on the Hollywood Walk of Fame.
The outward appearance of armadillos is somewhat comical. It is surprising that there has not been an armadillo cartoon. I was able to find one children's story book about a multi-hued armadillo. Apparently he was leading a life as a hobo. Or maybe he was one of those armadillos destined to be pioneers in the Empire or Keystone states!
What about using an armadillo as a college mascot? Unfortunately, there is a surfeit of institutions who use iconic animals such as bears, lions, and tigers as mascots; and some with regional ones: catamounts, gators, wolverines. But none has adopted the armadillo, even though it could be seen as a fertility symbol. However, the official mascot for last year's FIFA World Cup Tournament was a grotesquely unrealistic armadillo named Fuleco! This mascot could in no way be seen as a inspiration for lovemaking!
These should be placed in the same category as racoons and possums: interesting to look at but not to touch.