Mink weasel Families 4K Diffuse Textures 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. Wikipedia Mass: American mink: 0.5 – 1.6 kg, European mink: 550 – 800 g, Siberian weasel: 530 g Encyclopedia of Life Speed: American mink: 6.5 km/h Gestation period: American mink: 40 – 75 days, Siberian weasel: 30 days Encyclopedia of Life