American mink Temporal range: Recent PreꞒ Ꞓ O S D C P T J K Pg N ↓
Near Capisic Pond, Portland, Maine
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Carnivora
Family:	Mustelidae
Genus:	Neogale
Species:	N. vison
Binomial name
Neogale vison (Schreber, 1777)[2]
Subspecies
15, see text N. v. vison N. v. aestuarina N. v. aniakensis N. v. energumenos N. v. evagor N. v. evergladensis N. v. ingens N. v. lacustris N. v. letifera N. v. lowii N. v. lutensis N. v. melampeplus N. v. mink N. v. nesolestes N. v. vulgivaga
American mink range in North America
Native (red) and introduced (pink) range of American mink
Synonyms
Mustela vison Vison vison Neovison vison

The American mink (Neogale vison) is a semiaquatic species of mustelid native to North America, though human introduction has expanded its range to many parts of Europe, Asia, and South America. Because of range expansion, the American mink is classed as a least-concern species by the IUCN.^[1] The American mink was formerly thought to be the only extant member of the genus Neovison following the extinction of the sea mink (N. macrodon), but recent studies, followed by taxonomic authorities, have reclassified it and the sea mink within the genus Neogale, which also contains a few New World weasel species.^[3] The American mink is a carnivore that feeds on rodents, fish, crustaceans, frogs, and birds. In its introduced range in Europe it has been classified as an invasive species linked to declines in European mink, Pyrenean desman, and water vole populations. It is the animal most frequently farmed for its fur, exceeding the silver fox, sable, marten, and skunk in economic importance.^[4]

As a species, the American mink represents a more specialized form than the European mink in the direction of carnivory, as indicated by the more developed structure of the skull.^[5] Fossil records of the American mink go back as far as the Irvingtonian, though the species is uncommon among Pleistocene animals. Its fossil range corresponds with the species' current natural range. The American minks of the Pleistocene did not differ much in size or morphology from modern populations, though a slight trend toward increased size is apparent from the Irvingtonian through to the Illinoian and Wisconsinan periods.^[6]

Although superficially similar to the European mink, studies indicate the European mink's closest relative is the Siberian weasel (kolonok) of Asia. The American mink has been recorded to hybridize with European minks and polecats in captivity, though the hybrid embryos of the American and European minks are usually reabsorbed.^[7]

As of 2005^[update],^[8] 15 subspecies are recognised.

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