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Least weasels driven from a mountain hare carcass by a stoat, as illustrated in Barrett-Hamilton's A History of British Mammals. The least weasel is small enough to be preyed upon by a range of other predators. [38] Least weasel remains have been found in the excrement of red foxes, sables, steppe and forest polecat, stoats, eagle owls and ...
In the UK, the term "weasel" usually refers to the smallest species, the least weasel (M. nivalis), [1] the smallest carnivoran species. [ 2 ] Least weasels vary in length from 173 to 217 mm ( 6 + 3 ⁄ 4 to 8 + 1 ⁄ 2 in), [ 3 ] females being smaller than the males, and usually have red or brown upper coats and white bellies; some populations ...
They are found on all continents except Antarctica and Australia, and are a diverse family; sizes range, including tails, from the widespread 17 cm (7 in) least weasel to the 1.8-meter (6 ft) giant otter of Amazonian South America.
Skulls of a long-tailed weasel (top), a stoat (bottom left) and least weasel (bottom right), as illustrated in Merriam's Synopsis of the Weasels of North America. The long-tailed weasel is the product of a process begun 5–7 million years ago, when northern forests were replaced by open grassland, thus prompting an explosive evolution of small, burrowing rodents.
The American ermine has a body plan typical of weasels. It has short legs, a long body and neck, and a small triangular head with short round ears. It has a brown dorsum with a white venter (except during winter when the coat is fully white) and a short, black-tipped tail. [2]
There are at least 18 large mammal and 103 small mammal species known to occur in Wyoming. [1] Species are listed by common name, scientific name, typical habitat and occurrence. The common and scientific names come from the American Society of Mammalogists' Wyoming Mammal List. [2]
Known only to survive in captivity or as a naturalized populations well outside its previous range. CR: Critically endangered: The species is in imminent risk of extinction in the wild. EN: Endangered: The species is facing an extremely high risk of extinction in the wild. VU: Vulnerable: The species is facing a high risk of extinction in the ...
The Virginia opossum (Didelphis virginiana) The eastern coyote (Canis latrans var.) is expanding its range in West Virginia. The American, or northern, short-tailed shrew (Blarina brevicauda) The woodland vole (Microtus pinetorum) The snowshoe hare (Lepus americanus), typical of Canada, reaches its southernmost distribution in West Virginia.