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.

Uruguay is home to a rich avifauna, including the Southern lapwing and the magnificent black-necked swan.

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.

Waterlife is also rich, with species such as the tararira (Hoplias malabaricus) or the white-dotted skate.