I've lived in the KC area for about 15 years and it's only been in the last 2 or 3 that I've begun to see armadillos around here. Must be working their way up from Texas, no doubt due to global warming.
Armadillos tend to jump straight up when they are startled. They can damage cars if they are run over.
Texas Horned Lizards or Horned Frogs were common in Southwest AR in the 1960’s. I guess all the talk about global cooling scared them and they left. :0)