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Temporal range: Recent
Ondatra zibethicus FWS.jpg
Scientific classification
Kingdom: Animalia
Class: Mammalia
Order: Rodentia
Superfamily: Muroidea
Family: Cricetidae
Subfamily: Arvicolinae
Tribe: Ondatrini
Genus: Ondatra
Binomial name
Ondatra zibethicus
Verbreitungsgebiet Bisamratten.jpg
Muskrat range (native range in red, introduced range in green. Introduced range in South America not shown.)

Muskrats are rodents that live in freshwater and saltwater marshes, lakes, ponds, and streams. Muskrats often build dome-shaped houses in marshes. These houses, made of plants, protect the muskrat from predators, since the only entrance is underwater. Some muskrats live in burrows on the water banks. Muskrats are excellent swimmers but are slow on land.

Muskrats are native to North America, but have been brought to Europe and Asia, where they now live in the wild. Muskrats got their name because they have musk glands that produce a strong scent.