Animal Group Names Theme Week! — Day 3: Ferrets
All this week, we’re diving into the surprisingly fascinating names given to animal groups. Today: Ferrets.
A group of ferrets is called a business — and the origin is charmingly accidental. Early English texts described ferrets’ energetic, scurrying nature as a “busyness,” which was eventually copied down as “business” and has stuck ever since, the result of a 15th-century transcription error.
The word ferret itself comes from the Latin for “little thief,” a nod to the animals’ well-known habit of squirreling away small objects. As for the terminology within a group: a male ferret is a hob, a female is a jill, a spayed female is a sprite, and a neutered male is a gib.
Sleep, Schedules, and the Weasel War Dance
Ferrets sleep 14 to 18 hours a day and are most active around dawn and dusk. Unlike their polecat ancestors, which are solitary, most ferrets live happily in social groups. They are territorial, love to burrow, and prefer sleeping in enclosed spaces.
When excited, ferrets may perform what’s known as the weasel war dance — a burst of frenzied sideways hops and erratic leaps. Despite the name, it’s not aggressive; it’s a joyful invitation to play. Ferrets are notoriously clumsy during this display and will frequently collide with furniture or topple over objects. Interestingly, wild ferrets and stoats perform a similar hypnotic dance that can send prey into a trance.
The Weasel Family
Ferrets belong to the weasel family, which also includes polecats, stoats, badgers, and otters. Domesticated ferrets most likely descend from the European polecat and were first domesticated approximately 2,500 years ago.
For millennia, the primary use of ferrets was for hunting — a practice known as ferreting. The Romans are believed to have used them for this purpose, and Genghis Khan is recorded as deploying ferrets in a massive hunt in 1221, aimed at clearing an entire region of wild animals.
Built for the Chase
With their long, lean build and inquisitive nature, ferrets are ideally suited for pursuing rodents, rabbits, and moles through burrows. They are still used for hunting in some countries, including the United Kingdom, where rabbits are considered agricultural pests. Falconers also work with ferrets, using them to flush prey into the air for their birds — a surprisingly effective partnership.
Ferrets at Work
Ferrets’ talent for moving through narrow spaces has found some unusual professional applications. For the UK’s 1999 Millennium Eve concert in London, three trained ferrets — named Beckham, Posh Spice, and Baby Spice — were recruited to thread power and sound cables through underground ductwork at the concert venue.
In 1971, a ferret named Felicia was put to work at Fermilab, a particle physics lab in Illinois. Fitted with a custom harness and a cleaning swab attached to her collar, she cleared debris from the accelerator’s tubes — some stretching up to 300 feet long.
Ferrets in America
Ferrets arrived in the Americas in the 17th century and were widely used from 1860 until World War II to protect grain stores in the American West from rodents. They became popular as pets during the 1980s and 90s, and today an estimated 500,000 to 740,000 ferrets are kept as pets in the United States. However, they remain completely illegal to own in California, Hawaii, New York City, and Washington, D.C.
Ferrets and Medical Research
Because ferrets share many anatomical and physiological features with humans, they are widely used in biomedical research. They are a particularly valuable animal model for studying human influenza, and have also contributed to research into cardiovascular disease, cystic fibrosis, respiratory conditions, airway physiology, and gastrointestinal disease.