Armadillos dig burrows for their homes or to escape predators, and a single armadillo can have several different burrows with multiple entrances. Pregnant females always give birth to identical quadruplets. She produces one egg that splits into four identical offspring that are either all female or all male. This trait differs from most other mammals.
Armadillos are fascinating in other respects. When they need to cross narrow water bodies, they often walk on the bottom underwater. If it is a wide body of water, they will inflate their stomach to twice its normal size, allowing for enough buoyancy to swim across. When startled, armadillos often leap high into the air, and then run quickly to a nearby burrow.