The domestic ferret, Mustela putorius furo, stands among the oldest domesticated animals in the Western world, with a history of human association stretching back at least two thousand years and possibly much longer. The species descends from the European polecat, Mustela putorius, a small mustelid carnivore native to forests and grasslands across Europe and western Asia. Archaeological and textual evidence places the earliest deliberate keeping of ferrets somewhere in the Mediterranean basin, most likely in the Iberian Peninsula or North Africa, where they were employed to hunt rabbits by entering burrows too narrow for dogs to follow. This practice, known as ferreting, gave the animal both its primary historical purpose and its common name, derived from the Latin furittus, meaning little thief.
The Greek playwright Aristophanes referenced a small domesticated predator in his works dating to the fifth century BCE, and while scholars debate whether this animal was a ferret, a weasel, or a domesticated polecat, the passage suggests that tamed mustelids were familiar to Athenian audiences. Strabo, writing in the first century BCE, described the use of muzzled animals sent into rabbit warrens in the Balearic Islands, an account that aligns closely with traditional ferreting techniques still practiced in parts of Europe today. By the time Pliny the Elder compiled his Natural History in the first century CE, ferrets were established enough in Roman awareness to merit mention as animals used to control rabbit populations in areas where the lagomorphs had become agricultural pests.
Throughout the medieval period, ferrets became increasingly important as working animals across Europe. Their role expanded beyond rabbit hunting to include vermin control in grain stores, barns, and ships, where rats and mice posed constant threats to food supplies. Ferrets proved particularly effective aboard sailing vessels, and historical records from the Age of Exploration indicate that European ships frequently carried ferrets to manage rodent infestations during long voyages. This maritime role contributed significantly to the global dispersal of domesticated ferrets, introducing them to regions far beyond their ancestral European range.
The medieval European nobility also kept ferrets as hunting companions and status symbols. Illuminated manuscripts and tapestries from the thirteenth through fifteenth centuries occasionally depict ferrets alongside falcons and hounds in hunting scenes, suggesting that ferreting was considered a respectable field sport among the upper classes. Laws regulating who could own ferrets — restricting their possession to the clergy and landed gentry in some jurisdictions — further indicate the animal's social significance during this period. These regulations also reflect the practical value of ferrets; by limiting ownership, authorities sought to control who could hunt rabbits, an important food source and a potential target of poaching.