American mink
Mink are dark-colored, semiaquatic, carnivorous mammals of the genera "Neogale" and "Mustela" and part of the family Mustelidae, which also includes weasels, otters, and ferrets. There are two extant species referred to as "mink": the American mink and the European mink. The extinct sea mink is related to the American mink but was much larger.