Approximately 20 species of armadillo exist, but the nine-banded is the only one found in the United States. The term “armadillo” means “little armored one,” and refers to the presence of bony, armor-like plates covering their body. Despite their name, nine-banded armadillos can have 7 to 11 bands on their armor. There is a common misconception that nine-banded armadillos can roll up into spherical balls. In reality, only two species of armadillo (both three-banded) roll up completely.