Uruguayan savanna

The Uruguayan savanna, also known as the Brazilian-Uruguayan savanna, is a subtropical grassland and savanna ecoregion which includes all of Uruguay, some areas of northeastern Argentina and southernmost Brazil.

The ecoregion consists mostly of medium-tall grasslands, with areas of palm savanna, gallery forests along rivers, and enclaves of submontane forest.

Grazing mammals include the Pampas Deer (Ozotoceros bezoarticus), the Gray Brocket or Guazuvirá Deer (Mazama gouazoubira), and the capybara (Hydrochoerus hydrochaeris), the world's largest living rodent.

...
Wikipedia