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degu
The degu (''Octodon degus'', ) is a small caviomorph rodent that is endemic to the Chilean matorral ecoregion of central Chile.〔C. Michael Hogan & World Wildlife Fund. 2013. Chilean Matorral. Ed. Mark McGinley. Encyclopedia of Earth. National Council for Science and the Environment. Washington DC〕
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, rat).
== Description ==
The degu is a small animal with a body length of and a weight of . It has yellow-brown fur above and creamy-yellow below, with yellow around the eyes and a paler band around the neck. It has a long, thin tail with a tufted black tip, dark sparsely-furred ears, and pale grey toes. Its fifth toe is small with a nail, rather than a claw, on the forefeet. Its hindfeet are bristled. Its cheek teeth are shaped like figures-of-eight, hence the degu's genus name "''Octodon''".〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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