The armadillo is really strange looking. Although most armadillo species look like they have no hair, they do have wiry hairs on the sides and the belly. Some people refer to the hairs as curb feelers, since armadillos can feel their way around an area at night as the hairs touch objects. The one thing that tells everyone they are looking at an armadillo is the roly-poly shell with what are called “armored” bands. The number of bands depends on the species. The pleated look of most armadillos is made of these hardened, overlapping sections. Although the bands are tough like fingernails, the shell is flexible, with softer skin that expands and contracts between the bands.
Credits: Sandiego zoo