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Feral animals: Donkey, Red-eared slider, Ferret, Monk Parakeet, Rabbits in Australia, Wild boar, American Mink, Feral cat, Australian feral camel, Fer
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| Source: Wikipedia. Pages: 68. Chapters: Donkey, Red-eared slider, Ferret, Monk Parakeet, Rabbits in Australia, Wild boar, American Mink, Feral cat, Australian feral camel, Feral Pigeon, Alexandrine Parakeet, Rainbow Lorikeet, Rose-ringed Parakeet, Sulphur-crested Cockatoo, Trap-Neuter-Return, Feral horse, Ossabaw Island Hog, Eastern Rosella, Yellow-crested Cockatoo, Feral parrots, Pariah dog, Free-ranging urban dog, Burmese Pythons in Florida, Indian pariah dog, Red-masked Parakeet, Santa Cruz sheep, Canadian Parliamentary Cats, Red-crowned Amazon, Stray dogs in Bangkok, Overpopulation in companion animals, Campbell Island sheep, Sato, Help Joey, Arapawa Island, Semi-feral, Feral chicken. Excerpt: The American mink (Neovison vison) is a semi-aquatic species of Mustelid native to North America, though human intervention has expanded its range to many parts of Europe and South America. Because of this, it is classed as Least Concern by the IUCN. Since the extinction of the sea mink, the American mink is the only extant member of the genus Neovison. The American mink is a carnivore which feeds on rodents, fish, crustaceans, frogs and birds. In its introduced range in Europe, the American mink has been linked to declines in European mink and water vole. It is the most frequently farmed animal for its fur, outdoing in economic importance the silver fox, sable, marten and skunk. As a species, the American mink represents a more specialised form than the European mink in the direction of carnivory, as indicated by the more developed structure of the skull. Fossil records of the American mink go back as far as the Irvingtonian, though the species is uncommon among Pleistocene animals. The fossil range of the American mink corresponds with the species' current natural range. The American minks of the Pleistocene did not differ much in size or morphology from modern populations, though a slight trend toward increased size is apparent from the Irvingtonian through to the Illinoian and Wisconsinan periods. Although superficially similar to the European mink, studies indicate that the American mink's closest relative is the kolonok of Asia. The American mink has been recorded to hybridize with European minks and polecats in captivity, though the hybrid embryos of the American and European minks are usually reabsorbed. As of 2005, 15 subspecies are recognised. Skeleton of an American mink from the Muséum national d'histoire naturelle Skull as illustrated in Coues' A monograph of North American MustelidaeThe 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 wi |
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