Habitat   Home Habitat Hunting and Food Social Behavior Communication Howling Courtship and Mating Birthing and Maturation Parenting Management Literature Wolves live in a variety of habitats ranging from grassy prairies, to deep forests, to frozen tundras. They, however, do not inhabit areas such as deserts or high mountains. They do not require very specific habitat features. The only real requirement is a place for denning during the breeding season, and even then a den can range from a small cave to a burrow in the ground. Wolves were present throughout the entire world at one time including Mexico, Africa and Europe. Today in North America the wolves range is limited to Alaska, Canada and minimal parts of the northern US. Many places in Asia, Europe and Scandinavia still have wolves that roam the lands in limited numbers. In general, the population of wolves in an area is considered high at about one per 26km2, however populations can range from one per 10km2 to one per 500km2. The term home range, when referring to wolves, includes the area of land either enclosed by the runways of a particular pack, or the land available for use by the pack (C&F 467). The area of the home range varies by region, season and placement of the den. The placement of the den is important because the den is what the home range revolves around. If the den is at the center of the home range, the wolves will travel farther and in many directions, whereas, if the den is at the edge of their home range they will only travel in a few direction and not nearly as far as when it is in the center thereby reducing the range size (C&F 467).