The nutria (/ ˈnjuːtriə /) or coypu (/ ˈkɔɪpuː /) (Myocastor coypus) [1][2] is a herbivorous, [3] semiaquatic rodent from South America.

Dec 26, 2025 · Myocastor coypus is the only living member of the family Myocastoridae in the suborder Hystricognatha within the order Rodentia. Its closest living relatives are degus, American spiny rats, …

Adult nutria average 24 inches long from the nose to the base of the tail. The tail itself is 12-16 inches long, round, and nearly hairless. Males are slightly larger than females; males weigh 12-20 pounds …

Apr 19, 2023 · Nutria, also known as coypu, are large rodents that live in areas with lots of freshwater. Despite sometimes being called swamp rats, nutria are not rats.

The coypu (Myocastor coypus), otherwise known as nutria or River rat, is a large, semi-aquatic rodent. In spite of being a separate species, the animal is sometimes mistaken for a beaver or otter. These …

May 8, 2025 · A: Nutria (or coypu) are like gophers on steroids. Since they live near water, they are often mistaken for beavers or muskrats. There are some very big differences, both in appearance and...

Nutria are sometimes called “river rats” or “coypu,” with “coypu” being their name in their native South America. Their bright orange incisors are not just for show; they are hardened with iron, making them …

Aug 25, 2025 · A coypu, also known as nutria, is a large, semi-aquatic rodent native to South America. This herbivorous mammal is often mistaken for a beaver or a large rat. Coypus were introduced to …

Dec 1, 2021 · Invasive Species Profile: Nutria (Myocastor coypu) Posted on December 1, 2021 by Blackpoint IT

Coypu, Myocastor coypus This semi-aquatic rodent, the Coypu, which was originally introduced in Louisiana in the 1930's from South America, has spread northward and occurs in western …