Brazilian Cavy Cavia aperea

The Brazilian Cavy, also called the Brazilian Guinea Pig, is a wild rodent related to the domestic Guinea Pig and is native not only to Brazil but also to Argentina and much of northern South America.

Habitat is dry savannah and grassland. A medium-sized cavy, its fur is always grey-brown with a paler underside. Some dark or melanistic individuals are prevalent at least in captivity. Living in groups, they alert group members to a threat by a high-pitched scream.