Degus at the Artis Royal Zoo (also known as Natura Artis Magistra), Amsterdam (Holland)
The Degu is a small caviomorph rodent that is endemic to the Chilean matorral ecoregion of central Chile. It is sometimes referred to as
the Brush-tailed Rat, and is also called the Common Degu, to distinguish it from the other members of the genus Octodon. Other members are also called degus, but they are distinguished by additional names. The name "degu" on its own, however, indicates either the genus Octodon or, more usually, O. degus. Degus are in the parvorder Caviomorpha of the infraorder Hystricognathi, along with the chinchilla and guinea pig.
The word degu comes from the Mapudungun dewü (mouse or rat).