Patagonian mara Patagonian mara The Patagonian mara ("Dolichotis patagonum") is a relatively large rodent in the mara genus ("Dolichotis"). It is also known as the Patagonian cavy, Patagonian hare or dillaby. This herbivorous, somewhat rabbit-like animal 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 resembles a jackrabbit. It has distinctive long ears and long limbs. Its hind limbs are longer and more muscular than its forelimbs and it has a longer radius than humerus. The feet are compressed, making
Patagonian opossum of La Pampa and Choele Choel (northern Rio Negro Province). It is suggested that the Patagonian opossum may have emerged from the same ancestral group as "Marmosa". They resemble each other closely. In the winter both types have similarly thickening at the base of the tails, where fat accumulates. Yet they do not share all aspects of their lifestyle; Patagonian opossums have a specialized way to gather and consume food, which is made possible by the shortening of their skull and jaws. The shortening occurs in the premolar region; this gives the Patagonian opossum increased biting power. The general appearance