Hey so Armadillos right, apparently they are only in the Americas. 
I'm not familiar with armadillos. Why are they only found in the Americas?
Well, they're New World mammals. So a distant ancestor must've crossed over from the old world a long time ago.
Where in the Americas are they found?
I know they're in North America, because I've seen quite a few. But I'm not sure exactly where else.
What else do you know about armadillos?
There's 21 known species of armadillos, and some of those are only distinguished by the number of armor bands they have.
What is an armor band?
It's a band of color that the armadillos have on their outer armor.
So, each species has a different color armor which is what differentiates them?