Konrad Wothe / Stoat (Mustela erminea) in white winter coat standing upright in snow, Upper Bavaria, Germany, Europe. February.

Loic Poidevin / Stoat (Mustela erminea) Creux du Van, Jura Suisse , Switzerland, September.

Erlend Haarberg / Stoat (Mustela erminea) in snow tunnel, Laponia UNESCO World Heritage Site, Swedish Lapland, Sweden. January. Third place in Golden Turtle Photography Awards 2017 competition.

Paul Hobson / Weasel (Mustela nivalis) looking out of hole on woodland floor with snowdrops, Sheffield, England, UK.

Paul Hobson / Weasel (Mustela nivalis) head and neck looking out of yellow autumn acer leaves, Sheffield, England, UK.

Paul Hobson / Weasel (Mustela nivalis) investigating birch stump with bracket fungus in autumn woodland, Sheffield.

Espen Bergersen / Stoat (Mustela erminea) in winter coat, Andoy, Norway

Erlend Haarberg / Stoat (Mustela erminea) digging in snow, in white winter coat. Vauldalen, Sor-Trondelag, Norway, May.

Erlend Haarberg / Stoat (Mustela erminea) in white winter coat running. Vauldalen, Sor-Trondelag, Norway, May.

Erlend Haarberg / Stoat (Mustela erminea) in white winter coat, running. Vauldalen, Sor-Trondelag, Norway, May.

Erlend Haarberg / Stoat (Mustela erminea) in white winter coat, running. Vauldalen, Sor-Trondelag, Norway, May.

Erlend Haarberg / Stoat (Mustela erminea) in white winter coat, running. Vauldalen, Sor-Trondelag, Norway, May.

Erlend Haarberg / Stoat (Mustela erminea) in white winter coat, running. Vauldalen, Sor-Trondelag, Norway, April.

Erlend Haarberg / Stoat (Mustela erminea) in white winter coat. Vauldalen, Sor-Trondelag, Norway, April.

Erlend Haarberg / Stoat (Mustela erminea) in white winter coat. Vauldalen, Sor-Trondelag, Norway, April.

Erlend Haarberg / Stoat (Mustela erminea) in white winter coat, standing on hind legs, Vauldalen, Sor-Trondelag, Norway, April.

Erlend Haarberg / Stoat (Mustela erminea) in white winter coat, standing on hind legs, Vauldalen, Sor-Trondelag, Norway, April.

Erlend Haarberg / Stoat (Mustela erminea) in white winter coat, carrying fish, Vauldalen, Sor-Trondelag, Norway, April.

Erlend Haarberg / Stoat (Mustela erminea) in white winter coat. Vauldalen, Sor-Trondelag, Norway, May.

Erlend Haarberg / Stoat (Mustela erminea) in white winter coat, trying to steal fish (trout) hanging on transparent fishing line. Vauldalen, Sor-Trondelag, Norway, April

Igor Shpilenok,Igor Shpilenok / American Mink (Neovison vison) swimming. Kronotsky Zapovednik Nature Reserve, Kamchatka Peninsula, Russian Far East, June.

Richard Steel / 2020VISION / Stoat (Mustela erminea) standing on rock in saltmarsh, Conwy, Wales, UK, June.

Andy Rouse / 2020VISION / Stoat (Mustela erminea), UK, July. 2020VISION Book Plate. Did you know? There are 37 subspecies of stoat around the world.

Fabrice Cahez / Stoat (Mustela erminea) in winter coat, running, Champagne, France, Februray.

Edwin Giesbers / European mink (Mustela lutreola) swimming, captive, Germany, Critically endangered

Edwin Giesbers / European mink (Mustela lutreola) on log, Captive, Germany, Critically endangered

George Sanker / Long-tailed weasel (Mustela frenata) standing on hind legs, Yellowstone National Park, Wyoming, USA, June

Andy Rouse / European Stoat (Mustela erminea) in vegetation. UK, July.

Andy Rouse / European Stoat (Mustela erminea) portrait. UK, July.

Florian Möllers / European Mink (Mustela lutreola) female on a forest road. Critically endangered. Saarland, Germany, August.

Andy Sands / Stoat (Mustela erminea) in partial white winter ermine coat, captive, UK. British stoats rarely assume full winter ermine coast. This animal originated from Teesdale, County Durham.

Andy Rouse / European stoat (Mustela erminea) in habitat, UK (non-ex)

Andy Rouse / European stoat (Mustela erminea) in habitat, UK (non-ex)

Andy Rouse / European stoat (Mustela erminea) in habitat, UK (non-ex)

Edwin Giesbers / European polecat (Mustela putorius) hunting rabbit which is jumping to escape, Veluwezoom National Park, Netherlands

Oriol Alamany / Stoat / Ermine (Mustela erminea) juvenile, Aran valley, Pyrenees, Spain

Oriol Alamany / Stoat / Ermine (Mustela erminea) two juveniles playing, Aran valley, Pyrenees, Spain

Oriol Alamany / Stoat / Ermine (Mustela erminea) mother with three young, Aran valley, Pyrenees, Spain

Igor Shpilenok / Stoat {Mustela erminea} in white winter coat, Kronotsky Zapovednik, Kamchatka, Far East Russia, April

Andy Sands / Polecat (Mustela putorius) raiding hen house, Captive, UK

Igor Shpilenok / Stoat {Mustela erminea} with vole prey, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Stoat {Mustela erminea} portrait peering out of den, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Igor Shpilenok / Stoat {Mustela erminea} running, Valley of the Geysers, Kronotsky Zapovednik Reserve, Kamchatka, Russia.

Elio Della Ferrera / Stoat {Mustela erminea} with white winter coat in snow. Stelvio National Park, Italy.

Terry Andrewartha / Weasel hunting {Mustela nivalis} Norfolk, UK

Thomas Lazar / American mink, wet after swimming {Mustela vison} Kettle river, Minnesota, USA

Asgeir Helgestad / Stoat in white winter coat {Mustela erminea} Norway

Mike Wilkes / Stoat {Mustela erminea} Warwickshire, UK