Coypu this invasive species's endurance controversial to human occupants throughout most of its range. The genus name "Myocastor" derives from the two Ancient Greek words (), meaning "rat, mouse", and (), meaning "beaver". Literally, therefore, the name "Myocastor" means "beaver rat". Two names are commonly used in English for "Myocastor coypus". The name "nutria" (from Spanish "nutria") is generally used in North America, Asia, and throughout countries of the former Soviet Union; however, in most Spanish-speaking countries, the word "nutria" refers primarily to the otter. To avoid this ambiguity, the name "coypu" or "coipo" (derived from the Mapudungun language) is used
Given name Given name A given name (also known as a first name, forename or Christian name) is a part of a person's personal name. It identifies a specific person, and differentiates that person from the other members of a group (typically a family or clan) who have a common surname. The term "given name" refers to the fact that the name usually is bestowed upon a person, normally to a child by his or her parents at or close to the time of birth. A Christian name, a first name which historically was given at baptism, is now also typically given