Southern Three-banded Armadillo

The southern three-banded armadillo (Tolypeutes matacus), also known as La Plata three-banded armadillo or Azara's domed armadillo, is an armadillo species from South America. It is found in parts of northern Argentina, southwestern Brazil, Paraguay and Bolivia, at elevations from sea level to 770 m (2,530 ft). The southern three-banded armadillo and the other member of the genus Tolypeutes, the Brazilian three-banded armadillo, are the only species of armadillos capable of rolling into a complete ball to defend themselves. The three characteristic bands that cover the back of the animal allow it enough flexibility to fit its tail and head together, allowing it to protect its underbelly, limbs, eyes, nose and ears from predators. The shell covering its body is armored and the outer layer is made out of keratin, the same protein that builds human fingernails. They are typically a yellow or brownish color. Wikipedia →

50–60% of wildlife watchers report a Southern Three-banded Armadillo sighting in El Impenetrable National Park, based on 17 days of visitor records from GBIF citizen-science data.