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The European water vole (Arvicola amphibius) or northern water vole is a semi-aquatic rodent. It is often informally called the water rat, though it only superficially resembles a true rat. [3] Water voles have rounder noses than rats, deep brown fur, chubby faces and short fuzzy ears; unlike rats their tails, paws and ears are covered with hair.
The North American water vole or just water vole (Microtus richardsoni) is the largest North American vole. It is found in the northwestern United States and southern parts of western Canada . This animal has been historically considered a member of genus Arvicola , but molecular evidence demonstrates that it is more closely related to North ...
That is about four times the weight of the brown rat (Rattus norvegicus), though an adult muskrat is only slightly longer. It is almost certainly [clarification needed] the most prominent and heaviest member of the diverse family Cricetidae, which includes all voles, lemmings, and most mice native to the Americas, and hamsters in Eurasia.
Releasing water voles in the Vale of Glamorgan, Wales. The average lifespan for smaller species of vole is three to six months, and they rarely live longer than 12 months. Larger species, such as the European water vole, live longer and usually die during their second, or rarely their third, winter. As many as 88% of voles are estimated to die ...
Brown rats are the undisputed winners of the real rat race. New research suggests that they crawled off ships arriving in North America earlier than previously thought and out-competed rodent ...
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Isothrix barbarabrownae - Barbara Brown's brush-tailed rat; ... Arvicola sapidus - southwestern (or southern) water vole; Arvicola scherman - montane water vole;
The brown rat (Rattus norvegicus), also known as the common rat, street rat, sewer rat, wharf rat, Hanover rat, Norway rat and Norwegian rat, is a widespread species of common rat. One of the largest muroids, it is a brown or grey rodent with a body length of up to 28 cm (11 in) long, and a tail slightly shorter than that. It weighs between 140 ...