Lemmus lemmus, commonly known as the Norwegian lemming, is a small rodent found in the tundra of Scandinavia. It has a distinctive coat with a mix of brown, black, and yellow patterns. Known for its dramatic population cycles, it plays a crucial role in the Arctic food web, supporting predators like foxes and owls.

The Norway lemming (Lemmus lemmus) is native to the northern parts of Scandinavia, specifically in countries such as Norway, Sweden, Finland, and parts of the Russian Kola Peninsula.

The Norway lemming primarily inhabits tundra and alpine regions characterized by cold climates with long, harsh winters and short, cool summers. These areas typically feature low, dense vegetation, including mosses, lichens, grasses, and shrubs.

The Norway lemming occupies an ecological niche as a herbivore, primarily feeding on grasses, sedges, and mosses. It plays a crucial role in the tundra ecosystem as a prey species for various predators, including birds of prey, foxes, and other carnivores. Its burrowing behavior also contributes to soil aeration and nutrient cycling.