Synonyms for the black-footed ferret include the American polecat, the prairie dog hunter, and the Mustela nigripes. The black-footed ferret is a small carnivorous mammal that is native to North America and is known for its distinctive black feet and mask-like markings around its eyes. The species was once thought to be extinct but was rediscovered in the 1980s and has since been the subject of intense conservation efforts. The black-footed ferret is also known for its role as a predator of prairie dogs, which is a key species in the grassland ecosystem of North America.