The Patagonian Mara is an herbivorous animal, resembles a jackrabbit. It is also known as the Patagonian cavy, Patagonian hare or dillaby and is found in open and semi-open habitats in Argentina, including large parts of Patagonia. It is monogamous, but often breeds in warrens that are shared by several pairs.
The Patagonian mara has distinctive long ears and long limbs. Its hind limbs are longer and more muscular than its forelimbs. Its tail is short and almost hairless. It has a gray dorsal pelage with a white patch on the rump separated from the dorsal fur by a black area. Very quick runners, they hop with all their feet at once.