The Patigonian cavy is also known as
a Mara
The maras (Dolichotis) are a genus of
the cavy family. They are the sole
representatives of the subfamily
Dolichotinae. These large relatives of
guinea pigs are common in the
Patagonian steppes of Argentina but
live in other areas of South America as
well such as Paraguay. Maras are the
fourth largest rodent in the world, after
capybaras, beavers, and porcupines,
reaching about 45 cm (18 in) in height.