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The only species of marmot endemic to Vancouver Island, [11] it apparently evolved rapidly since the retreat of the Cordilleran ice sheet some 10,000 years ago. [12] It is distinct from other marmot species in terms of morphology, [13] genetics, [14] behaviour, [15] and ecology. [16]
Marmots are large rodents with characteristically short but robust legs, enlarged claws which are well adapted to digging, stout bodies, and large heads and incisors to quickly process a variety of vegetation. While most species are various forms of earthen-hued brown, marmots vary in fur coloration based roughly on their surroundings.
[6] [7] The alpine marmot is sometimes considered the heaviest squirrel species, although some other marmot species have a similar weight range, making it unclear exactly which is the largest. [6] [7] [8] Its coat is a mixture of blonde, reddish and dark gray fur. While most of the alpine marmot's fingers have claws, its thumbs have nails.
Range maps often erroneously depict hoary marmots occurring north of the Yukon River in Alaska, this region is occupied by the Alaska marmot (M. broweri) and not the hoary marmot. [14] Hoary marmots also occur on several islands in Alaska and fossils dating back to the Pleistocene, including some from islands no longer inhabited by the species ...
“For over 100 million years when dinosaurs were the dominant predators, mammals were generally small, nocturnal, and short-lived.” The pressure to stay alive eliminated the genes needed for ...
The yellow-bellied marmot (Marmota flaviventer), also known as the rock chuck, is a large, stout-bodied ground squirrel in the marmot genus. [2] It is one of fourteen species of marmots, and is native to mountainous and semi-arid regions of southwestern Canada and western United States, including the Rocky Mountains, Sierra Nevada, and the Great Basin, often (but not exclusively) living above ...
The poll, inspired by the release of the new 'Jurassic World' movie, asked, "Do you believe that dinosaurs and humans once lived on the planet at the same time?" Of the 1,000 people who were ...
The Olympic marmot (Marmota olympus) is a rodent in the squirrel family, Sciuridae. It occurs only in the U.S. state of Washington, at the middle elevations of the Olympic Peninsula. The closest relatives of this species are the hoary marmot and the Vancouver Island marmot. In 2009, it was declared the official endemic mammal of Washington state.