[3] The northern bog lemming is a small, reddish-brown rodent with a short tail, and distinct markings on their upper teeth.

[4] The northern bog lemming lives in wet habitats in North America and is omnivorous, eating herbaceous material and invertebrates.

Northern bog lemmings are in the Class Mammalia, the Order Rodentia, the Family Cricetidae, and the subfamily Arvicolinae.

[9] By the St. Lawrence river in the Appalachian Mountains, a small population of northern bog lemmings can be found as well.

[4] The northern bog lemming is an omnivorous mammal that primarily feeds on grasses, moss and sedge.

A common habit of these lemmings, which signifies their presence in an area, is that they create surface tunnels under vegetation to travel through and to forage in.

[6] During the spring, summer and fall when there is no snow cover, northern bog lemmings are most active below the earth's surface due to threats of predators.

Northern bog lemmings are active above ground most of the winter season as the risk of coming into contact with predators is lower.

Their nests are built from the grasses, dried leaves, moss, and sedges they find in their habitat, as well as their own fur, and are spherical in shape.

The season for breeding for the northern bog lemming is thought to be from the spring (May) to early fall (end of August).

[4] It is thought that northern bog lemmings use touch, scent markings, and other chemical signaling to communicate.

[11] Additional threats to the northern bog lemming may include competition with other species as habitat area decreases, habitat loss and degradation due to logging, infrastructure building, and human recreational activities, as well as threats of pollution and climate change.

[1] They are listed as "Species of Special Concern" for protection and preservation by the State of Minnesota, and on a federal level, their status is still being considered.