Eurasian beaver
Eurasian beavers are one of the largest living species of rodents and are the largest rodent native to Eurasia. They weigh around . In Norway, adult males average while females average , while another study found adults from the same country to average . By the average weights known, the Eurasian beaver appears to be the world's second heaviest rodent behind the capybara, but averaging slightly larger and heavier than the North American beaver. While the largest specimen confirmed on record weighed , the Smithsonian has reported that this species can exceptionally exceed . Typically, the head-and-body length is and the tail length is .
Serras de Sudeste
Grazing mammals of the hill range include the Pampas deer ("Ozotoceros bezoarticus"), the gray brocket or guazuvirá deer ("Mazama gouazoubira"), the capybara ("Hydrochoerus hydrochaeris"), the world's largest living rodent, the Molina's hog-nosed skunk and the Pampas fox ("Lycalopex gymnocercus"), and birds include the greater rhea ("Rhea americana") and the red-winged tinamou ("Rhynchotus rufescens"). Jaguars, cougars and ocelots do not exist anymore in this area.