Common Names: American mink
A semi-aquatic species of Mustelid native to North America, which has been domesticated for it's fur and oil. The American mink differs from members of the genus Mustela (stoats and weasels) by its larger size and stouter form, which closely approaches that of martens. It shares with martens a uniformly enlarged, bushy and somewhat tapering tail, rather than a slenderly terete tail with an enlarged bushy tip, as is the case in stoats. The American mink has a long body, which allows the species to enter the burrows of prey. Its streamlined shape helps it to reduce water resistance while swimming.
Most territories are located in undisturbed rocky coastal habitats with dense cover. They may also occur on estuaries, rivers and canals near urban areas. As long as it is close to water, the American mink is not fussy over its choice of den. Mink dens typically consist of long burrows in river banks, holes under logs, tree stumps or roots and hollow trees, though dens located in rock crevices, drains and nooks under stone piles and bridges are occasionally selected.