Editing Least weasel (section)

{{Short description|Species of mammal}}
{{Good article}}
{{Use dmy dates|date=September 2020}}
{{Speciesbox
| name = Least weasel
| fossil_range = Late [[Pleistocene]] – Recent
| image = Mustela nivalis -British Wildlife Centre-4.jpg
| image_caption = Least weasel at the [[British Wildlife Centre]], [[Surrey]], [[England]]
| status = LC
| status_system = IUCN3.1
| status_ref = <ref name=iucn>{{cite iucn |title=''Mustela nivalis'' |amends=2016 |author1=McDonald, R.A. |author2=Abramov, A.V. |author3=Stubbe, M. |author4=Herrero, J. |author5=Maran, T. |author6=Tikhonov, A. |author7=Cavallini, P. |author8=Kranz, A. |author9=Giannatos, G. |author10=Kryštufek, B.  |author11=Reid, F. |year=2019 |page=e.T70207409A147993366 |doi=10.2305/IUCN.UK.2016-1.RLTS.T70207409A147993366.en |access-date=18 February 2022}}</ref>
| genus = Mustela
| species = nivalis
| authority = [[Carl Linnaeus|Linnaeus]], 1766
| range_map = Least Weasel area.png
| range_map_caption = Global range of the least weasel
}}

The '''least weasel''' ('''''Mustela nivalis'''''), '''little weasel''', '''common weasel''', or simply '''weasel''' is the smallest member of the [[genus]] ''[[Mustela]],'' [[Family (biology)|family]] [[Mustelidae]] and [[Order (biology)|order]] [[Carnivora]]. It is native to [[Eurasia]], [[North America]] and [[North Africa]], and has been introduced to [[New Zealand]], [[Malta]], [[Crete]], the [[Azores]], and [[São Tomé Island|São Tomé]]. It is classified as [[least concern]] by the [[IUCN]], due to its wide distribution and large population throughout the [[Northern Hemisphere]].<ref name=iucn/>

The least weasel varies greatly in size over its range. The body is slender and elongated, and the legs and tail are relatively short. The colour varies geographically, as does the [[pelage]] type and length of tail. The dorsal surface, flanks, limbs and tail of the animal are usually some shade of brown while the underparts are white. The line delineating the boundary between the two colours is usually straight. At high altitudes and in the northern part of its range, the coat becomes pure white in winter. Eighteen subspecies are recognised.

Small rodents form the largest part of the least weasel's diet, but it also kills and eats rabbits, other mammals, and occasionally birds, birds' eggs, fish and frogs. Males mark their territories with [[Territory (animal)#Scent marking|olfactory signals]] and have exclusive home ranges which may intersect with or include several female ranges. Least weasels use pre-existing holes to sleep, store food and raise their young. Breeding takes place in the spring and summer, and there is a single litter of about six kits which are reared exclusively by the female. Due to its small size and fierce nature, the least weasel plays an important part in the mythology and legend of various cultures.