Chipmunks are small, striped rodents of the family Sciuridae. Chipmunks are found in North America, with the exception of the Siberian chipmunk which is found primarily in Asia.
The Arvicolinae are a subfamily of rodents that includes the voles, lemmings, and muskrats. They are most closely related to the other subfamilies in the Cricetidae. Some authorities place the subfamily Arvicolinae in the family Muridae along with all other members of the superfamily Muroidea. Some refer to the subfamily as the Microtinae or rank the taxon as a full family, the Arvicolidae.
The Norway lemming, also Norwegian lemming is a common species of lemming found in northern Fennoscandia. It is the only vertebrate species endemic to the region. The Norway lemming dwells in tundra and fells, and prefers to live near water. Adults feed primarily on sedges, grasses and moss. They are active at both day and night, alternating naps with periods of activity.
The northern collared lemming or Nearctic collared lemming, sometimes called the Peary Land collared lemming in Canada, is a small North American lemming. At one time, it was considered to be a subspecies of the Arctic lemming. Some sources believe several other species of collared lemmings found in North America are actually subspecies of D. groenlandicus.
The genus Lemmus contains several species of lemming sometimes referred to as the true lemmings. They are distributed throughout the Holarctic, particularly in the Palearctic.
The Siberian chipmunk or common chipmunk appears across northern Asia from central Russia to China, Korea, and Hokkaidō in northern Japan. Imported from South Korea and introduced in Europe as a pet in the 1960s, it is the only chipmunk found outside North America and is classed either as the only living member of the genus Eutamias, or as a member of a genus including all chipmunks.
The North American brown lemming is a small North American lemming. Originally called the Siberian brown lemming they were later formed into two distinct species.
The grey red-backed vole or the grey-sided vole is a species of vole. An adult grey red-backed vole weighs 20-50 grams. This species ranges across northern Eurasia, including northern China, the northern Korean Peninsula, and the islands of Sakhalin and Hokkaidō. It is larger and longer-legged than the northern red-backed vole, which covers a similar range and it is also sympatric with the Norwegian lemming.
Nelson's collared lemming is a species of rodent in the family Cricetidae.
The Ogilvie Mountains collared lemming is a species of rodents in the family Cricetidae. It is found only in Yukon Territory, Canada. Its natural habitat is tundra.
The Arctic lemming is a species of rodents in the family Cricetidae.
The Wrangel Island lemming is a species of lemming endemic to Wrangel Island in Russia. It was included as a subspecies of L. sibiricus by Jarrell and Fredga in 1993, while Chernyavskii regarded it as a separate species.
A lemming is a small rodent, usually found in or near the Arctic in tundra biomes. Lemmings make up the subfamily Arvicolinae together with voles and muskrats, which form part of the superfamily Muroidea, which also includes rats, mice, hamsters, and gerbils. In popular culture, a longstanding myth holds that they jump off cliffs/commit mass suicide.
Topografov virus is an enveloped, negative-sense RNA virus species of the genus orthohantavirus in the Bunyavirales order. It is the first hantavirus to be isolated from Siberian lemmings found near the Topografov River in the Taymyr Peninsula, Siberia.
