Sven Zacek / American mink (Mustela vison) on ice with Common frog (Rana temporaria) prey, Tartumaa, Estonia, January. Introduced species.

Sven Zacek / American mink (Mustela vison) shaking off fur on ice with Common frog (Rana temporaria) prey, Tartumaa, Estonia, January. Introduced species.

Sven Zacek / American mink (Mustela vison) running on ice with Common frog (Rana temporaria) prey, Tartumaa, Estonia, January. Introduced species.

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

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

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

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

Mary McDonald / American mink (Mustela vison) with fish, USA - captive

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

Mary McDonald / American mink, USA (Mustela vison)

LYNN M. STONE / American Mink, USA

Sven Zacek / American mink (Mustela vison) standing on ice. Tartumaa, Southern Estonia. January.

Terry Whittaker / American mink (Neovison vison). Hornstrandir, Iceland. March. Introduced species.

Terry Whittaker / American mink (Neovison vison). Hornstrandir, Iceland. March. Introduced species.

Dave Bevan / American mink (Neovison vison) swimming across lake, Somerset, England, UK, June.

Nick Hawkins / Americam mink (Neovison vison) on Little Shiprock Island, Nova Scotia, Canada, September.

Nick Hawkins / Americam mink (Neovison vison) on Little Shiprock Island, Nova Scotia, Canada, September.

Sylvain Cordier / American mink (Mustela vison),near the water in the Khuzemateen Grizzly Bear Sanctuary, British Columbia, Canada

Sylvain Cordier / European mink (Mustela lutreola) England, UK, June.

Sylvain Cordier / European mink (Mustela lutreola) walking by water, England, UK, June.

Robin Chittenden / Fenn trap, probably set for species such as rat, stoats and mink, Norfolk UK February

George Sanker / American mink (Neovison vison) hunting at edge of small pond, Acadia National Park, Maine, USA.

Jussi Murtosaari / American mink (Neovison vison) on snow, Finland, January. Introduced species.

Jim Brandenburg / American Mink (Neovison vison) tracks and sun reflected in meltwater, spring, Minnesota

George Sanker / American Mink (Neovison vison) walking across frozen pond, Acadia National Park, Maine, USA. November

George Sanker / American Mink (Neovison vison) running across frozen pond, Acadia National Park, Maine, USA. November

George Sanker / American Mink (Neovison vison) sitting on frozen pond, Acadia National Park, Maine, USA. November

George Sanker / American Mink (Neovison vison) jumping across frozen pond, Acadia National Park, Maine, USA. November

George Sanker / American Mink (Neovison vison) walking across frozen pond, Acadia National Park, Maine, USA. November

George Sanker / American Mink (Neovison vison) running across frozen pond, Acadia National Park, Maine, USA. November

George Sanker / American Mink (Neovison vison) running across frozen pond, Acadia National Park, Maine, USA. November

Scott Leslie / Mink Frog (Rana septentrionalis) on lily pad, Nova Scotia, Canada

Sven Zacek / American mink (Mustela vison) on a moss covered branch, Tartumaa, Estonia, January. Introduced species.

Sven Zacek / American mink (Mustela vison) just about to dive into river. Tartumaa, Estonia, January. Introduced species.

Sven Zacek / American mink (Mustela vison) on ice with Common frog (Rana temporaria) prey, Tartumaa, Estonia, January. Introduced species.

Sven Zacek / American mink (Mustela vison) on a willow branch. Tartumaa, Estonia, January. Introduced species.

Sven Zacek / American mink (Mustela vison) on ice with Common frog (Rana temporaria) prey, Tartumaa, Estonia, January. Introduced species.

Sven Zacek / American mink (Mustela vison) on river ice, with Common frog (Rana temporaria), Tartumaa, Estonia, January. Introduced species.

Sven Zacek / American mink (Mustela vison) on ice shaking itself off, Tartumaa, Estonia, January. Introduced species.

Sven Zacek / American mink (Mustela vison) on ice with Common frog (Rana temporaria) prey, Tartumaa, January . Introduced species.

Sven Zacek / American mink (Mustela vison) running on ice, Tartumaa, Estonia, January. Introduced species.

Sven Zacek / American mink (Mustela vison) on ice, Tartumaa, Estonia, January. Introduced species.

Sven Zacek / American mink (Mustela vison) on ice, Tartumaa, Estonia, January. Introduced species.

Sven Zacek / American mink (Mustela vison) on river ice, Tartumaa, Estonia, January.

Roland Seitre / European mink (Mustela lutreola) babies at captive breeding scheme. Captive, occurs in Eastern Europe and Russia.

Roland Seitre / European mink (Mustela lutreola) adult with babies at captive breeding scheme. Captive, occurs in Eastern Europe and Russia. Critically endangered species.

Roland Seitre / European mink (Mustela lutreola) babies sleeping, at captive breeding scheme. Captive, occurs in Eastern Europe and Russia.

Ole Jorgen Liodden / American mink (Mustela vision) walking, Bergen, Norway. October. Invasive species.

Ole Jorgen Liodden / American mink (Mustela vision) smelling ground, Bergen, Norway. October. Invasive species.

Terry Whittaker / Volunteer for the Kent Wildlife Trust 'Water Vole Recovery Project' (Arvicola amphibius) conducting American mink (Neovison vison) survey using floating raft. North Kent Marshes, UK, June 2014.

Terry Whittaker / Volunteer for the Kent Wildlife Trust 'Water Vole Recovery Project' (Arvicola amphibius) conducting American mink (Neovison vison) survey using floating raft. North Kent Marshes, UK, June 2014.

Terry Whittaker / Ian Parker and John Young, volunteers for the Kent Wildlife Trust 'Water Vole Recovery Project' (Arvicola amphibius) conducting American mink (Neovison vison) survey using floating raft. North Kent Ma...

Terry Whittaker / Volunteer for the Kent Wildlife Trust 'Water Vole Recovery Project' (Arvicola amphibius) conducting American mink (Neovison vison) survey using floating raft. North Kent Marshes, UK, June 2014.

Nick Upton / Rebecca Northey of Derek Gow Consultancy checking clay tray on floating raft tethered to the bank of pond for footprints of American mink (Mustela vison), major predator of Water voles (Arvicola amphi...

Nick Upton / Rebecca Northey of Derek Gow Consultancy checking clay tray on floating raft tethered to the bank of pond for footprints of American mink (Mustela vison), a predator of Water voles (Arvicola amphibius...

Nick Upton / Teagen Hill of Westland Countryside Stewards setting trap for American mink (Mustela vison), a predator of Water voles (Arvicola amphibius), before setting into floating raft tethered to stream bank,...

Nick Upton / Teagen Hill of Westland Countryside Stewards checking trap set for American mink (Mustela vison) a predator of Water voles (Arvicola amphibius), on floating raft tethered to river bank, near Bude, Cor...

Nick Upton / Teagen Hill of Westland Countryside Stewards setting trap for American mink (Mustela vison) a predator of Water voles (Arvicola amphibius), into floating raft tethered to river bank, near Bude, Cornwa...

Loic Poidevin / American Mink (Mustela vison) on rocks, British Columbia, Canada, June.

Igor Shpilenok / American Mink (Neovison vison) looking through ranger cabin boards. Kronotsky Zapovednik Nature Reserve, Kamchatka Peninsula, Russian Far East, June.

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

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

Daniel Heuclin / European Mink (Mustela lutreola) captive, South West France. Critically endangered species.

Nick Upton / American mink (Mustela vison) swimming in a drainage channel, RSPB Greylake, Somerset Levels, UK, May.

Nick Upton / American mink (Mustela vison) swimming in a drainage channel, RSPB Greylake, Somerset Levels, UK, May.

David Tipling / 2020VISION / Floating mink trap used to protect nesting birds from predation and disturbance. Rutland Water, UK, April.

Edwin Giesbers / American mink (Mustela vison) captive

Laurie Campbell / American mink (Mustela vison) on seashore, Isle of Skye, Scotland, July 2007

Laurie Campbell / American mink (Mustela vison) on seashore, Loch Sunart, Argyll, Scotland, June

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

Edwin Giesbers / European mink (Mustela lutreola) looking out from pile of felled trees, captive, Germany, Critically endangered

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

Edwin Giesbers / Two European mink (Mustela lutreola) one walking along log, the other swimming, captive, Germany, Critically endangered

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

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

Sven Zacek / American Mink (Mustela vison) swimming at water surface. Estonia, Europe, April.

Sven Zacek / American Mink (Mustela vison) swimming at water surface. Estonia, Europe, April.

Matthias Breiter / Harbor Seal (Phoca vitulina) group hauled out on rock, Mussel Inlet, British Columbia, Canada

Scott Leslie / Mink Frog (Rana septentrionalis) with reflection Nova Scoti a, Canada

Florian Möllers / European Mink (Mustela lutreola) shaking off water after hunting in forest stream. Critically endangered. Saarland, Germany, August.

Florian Möllers / European Mink (Mustela lutreola) swimming. Critically endangered. Saarland, Germany, August.

Florian Möllers / European Mink (Mustela lutreola) female peering through riverbank vegetation. Critically endangered. Saarland, Germany, August.

Florian Möllers / River Ilz, habitat of the European Mink (Mustela lutreola). Critically endangered. Saarland, Germany, August 2007.

Florian Möllers / European Mink (Mustela lutreola) female portrait in woodland habitat. Critically endangered. Saarland, Germany, August.

Florian Möllers / European Mink (Mustela lutreola) female foraging at the shore of a small pond. Critically endangered. Saarland, Germany, August.

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

Florian Möllers / European Mink (Mustela lutreola) female licking its nose on a rotting log. Critically endangered. Saarland, Germany, August.

Florian Möllers / European Mink (Mustela lutreola) female in profile. Critically endangered. Saarland, Germany, August.

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

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

Florian Möllers / European Mink (Mustela lurteola) feeding on small fish prey. Critically endangered. Saarland, Germany, August.

Florian Möllers / European Mink (Mustela lutreola) female portrait. Critically endangered. Saarland, Germany, August.

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

Florian Möllers / Ilona Beermann carrying out radio telemetry of European Mink (Mustela lutreola). River Ilz, Saarland, Germany, August 2007.

Florian Möllers / Ilona Beermann carrying out radio telemetry of European Mink (Mustela lutreola). River Ilz, Saarland, Germany, August 2007.

Florian Möllers / Portrait of European Mink (Mustela lutreola) female. Critically endangered. Saarland, Germany, August.