Do Ferrets Eat Bunnies? Their Predatory Instinct Explained

The domestic ferret (Mustela putorius furo) is a small mammal in the Mustelidae family, which also includes weasels, otters, and badgers. As a domesticated form of the European Polecat, the ferret’s history has long been intertwined with human activities. Understanding the ferret’s biological makeup and ancestral behaviors is necessary to grasp why its interaction with rabbits is a serious concern. The answer to whether a ferret will attack a bunny lies within its specialized dietary needs and powerful, inherited predatory instincts.

Ferret Dietary Needs: Obligate Carnivores

Ferrets are classified as obligate carnivores, meaning their digestive system is structured to process only animal-based matter. They must consume meat to survive, as their bodies cannot efficiently extract necessary nutrients from plant materials. Their gastrointestinal tract is short and simple, lacking a cecum, resulting in a rapid transit time of only three to four hours for food. This rapid digestion necessitates a diet that is extremely nutrient-dense, consisting of high levels of animal protein (typically 30% to 40%) and fat (ranging from 15% to 30%). This hyper-carnivorous nature establishes the biological imperative for ferrets to seek and consume whole prey.

Ferrets and the Predatory Instinct Towards Rabbits

The historical relationship between ferrets and rabbits provides the clearest answer regarding a ferret’s instinctual behavior toward bunnies. Ferrets were domesticated specifically for the practice of “ferreting,” a method of hunting rabbits by sending the ferret into burrows to flush the prey out into nets or waiting hunters. This practice dates back to at least 63 BC, when Romans reportedly used ferrets to control rabbit overpopulation on the Balearic Islands. The European Polecat, the ferret’s wild ancestor, naturally preys on small mammals, including lagomorphs like rabbits and hares.

Domesticated ferrets, despite generations of selective breeding, retain this deeply ingrained prey drive toward small, fast-moving animals. This instinct is not driven by hunger alone; a well-fed ferret may still exhibit the predatory behavior of stalking, chasing, and attacking a rabbit. When a ferret encounters a bunny, it views the rabbit as a natural prey item, and the interaction can quickly turn lethal, regardless of the rabbit’s size. The ferret is biologically equipped for this behavior, possessing sharp canine teeth and a strong bite designed to target the neck and spine for a swift kill. Any direct interaction between a ferret and a rabbit is extremely dangerous, as the ferret’s instinct to attack is immediate and overwhelming.

Preventing Interactions Between Ferrets and Bunnies

Given the ferret’s powerful, innate predatory instincts, owners must maintain absolute segregation between ferrets and rabbits. The risk is too significant to rely on supervision or the hope that domestication will override the ferret’s predatory wiring. It is necessary to house the two species in separate rooms or, ideally, on different floors of the home to minimize any possibility of accidental contact.

Ferrets are notorious escape artists due to their slender bodies and inquisitive nature, capable of squeezing through surprisingly small openings. All ferret enclosures must be exceptionally secure, utilizing multiple latches or carabiner clips, as a standard cage door may not be sufficient to contain them. Even the mere presence or scent of a ferret can cause significant fear and stress in a rabbit, a prey animal, potentially leading to serious health issues. Consequently, under no circumstances should a ferret and a rabbit be allowed to interact.