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Ferret

The ferret is a domesticated form of the European polecat, classified as *Mustela putorius furo*, in the weasel family Mustelidae.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

The ferret is a domesticated form of the European polecat, classified as *Mustela putorius furo*, in the weasel family Mustelidae. The name can also refer to the black-footed ferret, *Mustela nigripes*, a North American wild species. Ferrets are commonly kept as pets and have also been used historically for hunting rodents and rabbits.

Taxonomy and classification

Ferrets are mammals in the order Carnivora and family Mustelidae. The domestic ferret is usually treated as *Mustela putorius furo*, while the black-footed ferret is *Mustela nigripes*.

Domestic ferret

The domestic ferret is descended from the European polecat and has been kept in captivity for more than 2,000 years. It is widely kept as a pet and has also been used in research and hunting.

Black-footed ferret

The black-footed ferret is a distinct wild species native to North America and is endangered. Its survival is closely tied to prairie dogs, which make up most of its diet and habitat use.

Appearance and life history

Ferrets are long, slender mustelids with variable coat colours, including white, sable, cinnamon, and chocolate. Domestic ferrets typically reach full size within months and often live around 6 to 10 years.

Key facts

  • Domestic ferrets are a domesticated form of the European polecat.
  • Ferrets belong to the mustelid family, which also includes weasels, minks, otters, and wolverines.
  • The term “ferret” may also refer to the black-footed ferret, a separate endangered species native to North America.
  • Domestic ferrets were historically used to hunt rabbits, rats, and other burrowing animals.
  • Ferrets are now commonly kept as companion animals.
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Canadian context

Black-footed ferrets historically ranged into Saskatchewan, and Canadian readers may encounter them in discussions of prairie conservation and species recovery in North America.

Frequently asked questions

What is a ferret?
A ferret is usually a domesticated mustelid, *Mustela putorius furo*, descended from the European polecat.
Is a ferret a wild animal or a pet?
Both uses exist: domestic ferrets are common pets, while the black-footed ferret is a wild and endangered species.
What family do ferrets belong to?
Ferrets belong to the family Mustelidae, the weasel family.
What do ferrets eat?
Domestic ferrets are carnivores; black-footed ferrets feed almost entirely on prairie dogs.
How long do ferrets live?
Domestic ferrets typically live about 6 to 10 years.
Are ferrets related to weasels?
Yes. Ferrets are mustelids, the same family that includes weasels, minks, otters, badgers, and wolverines.

References

  1. Britannicahttps://www.britannica.com/animal/ferret
    Supports: Ferret as domestic form of European polecat; family Mustelidae; distinction between domestic and black-footed ferrets.
  2. MSD Veterinary Manualhttps://www.msdvetmanual.com/exotic-and-laboratory-animals/ferrets/overview-of-ferrets
    Supports: Domestic ferret classification, captivity history, uses, physical traits, lifespan.
  3. The Nature Conservancyhttps://www.nature.org/en-us/get-involved/how-to-help/animals-we-protect/black-footed-ferret/
    Supports: Black-footed ferret diet, habitat, North American range including Saskatchewan, endangered status, conservation context.
  4. Smithsonian's National Zoo & Conservation Biology Institutehttps://nationalzoo.si.edu/animals/black-footed-ferret
    Supports: Black-footed ferret as North America's only native ferret species and conservation recovery.