It is characteristic of the Uruguayan savanna. 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.
Despite the humid climate of much of the country, the vast majority of Uruguay's land is made up of savannas, so there is not much amphibian diversity. However, the Argentine horned frog, Ceratophrys ornata, thrives in the savannas of central and northwestern Uruguay. Other notable amphibian species of Uruguay include Pseudis minuta, Boana pulchella, Rhinella achavali, and Rhinella diptycha.