There is also the pygmy armadillo that is the only one of the species that is said to hibernate. The pygmy is found in Patagonia and the Argentine pampas. Most armadillos are nocturnal, living in burrows when not active. They are seen both in groups and alone. The burrows are approximately three feet deep and are a single tunnel rather than branched.
All armadillos find no obstacle with water.
Even though they are weighed down with their coats of armor they will swallow air to blow up the intestines. This gives them added buoyancy and some, such as the nine banded armadillo are know to stay submerged to as much as six minutes. In most cases the hind feet are press to the ground but the fore feet are raised up on their strong, pointed claws. They live on a variety of foods including plants, carrion, snakes, lizards, insects and other invertebrates. The giant armadillo has even been known to dig into graves to eat the corpse.