The article offers information on the American mink (Neovison vison) which belongs to Mustelidae family along with its anatomy and behavior. Topics discussed include anatomy of American mink which include medium sized body with white patches on the belly; semi-aquatic habitats of American mink which include eutrophic streams, rivers and lakes; reduction of Mink due to increased number of Lutra lutra species; and negative effect of Mink on some riparian species populations.