Mustela packs weasels, stoats, ferrets, and mink together
Genus Mustela in the mustelid family covers least weasels, polecats, stoats, ferrets, and European mink—slender hunters of small mammals. Least weasels run about 173–217 mm, females smaller, often with reddish-brown backs and white bellies. English first meant the European least weasel before the name widened.
Weasels belong to Mustela, a genus of the mustelid family that also contains polecats, stoats, ferrets and the European mink; badgers, otters and wolverines are more distant members of the wider "weasel family." The Latin name joins mus, "mouse," with telum, "javelin," a fair sketch of a long, thin hunter. Of 16 living Mustela species, 10 carry "weasel" in their common names. In 1999 the American mink was moved out to Neovison, and in 2021 it joined the long-tailed, Amazon and Colombian weasels in a separate genus, Neogale.
In Britain the word usually means the least weasel, Mustela nivalis, the smallest of all carnivorans and the species "weasel" first named in English. Adults measure 173 to 217 mm plus a tail of 34 to 52 mm, females smaller than males, with red or brown backs and white bellies; some populations turn fully white in winter. The slender build lets them chase prey right into burrows. They range across Europe, North America, much of Asia and pockets of North Africa.
Farmers have long had mixed feelings. Some weasels raided poultry yards and commercial rabbit warrens and were branded vermin, yet the same animals eat rodents in large numbers.
Folklore is just as divided. In Greece a weasel near the house is a bad sign, above all where a bride-to-be lives, because the animal was imagined as an unhappy bride who ruins wedding dresses; in Macedonia it signals luck. Early-modern Mecklenburg prized weasel amulets and set aside 15 August to 8 September for killing them, while the Wends and people of Montagne Noire refused to harm them. Japanese lore cast weasels as shape-shifting yōkai whose packs started fires, and blamed sudden unexplained cuts, kamaitachi, on an invisible weasel. English turned the animal into an insult and "weasel words" into a label for slippery phrasing.
Source: Weasel
