• pond surrounded by green brush, reflecting a distant range of snow-covered mountains that are dominated by one massive mountain

    Denali

    National Park & Preserve Alaska

Moose

moose standing in a spruce forest

NPS Photo / Tim Rains

Moose face many natural and human related challenges. These factors can potentially affect their behavior, distribution and population:
  • weather
  • predation by wolves and bears
  • human development.
Moose in the park tend to live in forested areas that are often close to lakes and marshes and other bodies of water. Moose are also excellent swimmers. In the winter they remain in their territory, often in willow marshes, and form "yards"- they create paths in the deep snow as they paw for food. During the summer they graze on grasses, forbs, underwater vegetation, bushes, coniferous needles and deciduous leaves. Moose are very large, fast animals and are aggressive when disturbed.


Size
Adult males are called bulls, adult females are cows and the young are called calves. Moose are not typically found in large herds, they are mainly found as single animals or in small groups. Moose are the largest member of the deer family.

Adult males can weigh 900-1400 pounds and females can weigh 700-1100 pounds. They have extremely long legs and stand 5-6 ½ feet at the shoulder. They use their long legs to wade into bodies of water and eat plants off the bottom. Their legs also enable them to paw through deep snow to reach food in winter. Their body is covered with black or very dark brown hair. They have a very large head with a dewlap of skin, called a "bell," hanging down from the jaw.


Reproduction
Moose breed in late September and early October. Bulls have large antlers that curve upward and back. The antlers are palmate; having a flattened area like the palm of your hand, with the fingers or tines pointing up. The bulls use these antlers to spar during the breeding season or rut.

During the rut, bulls can be extremely aggressive and dangerous. The grow antlers each spring and shed them in early winter, after breeding season. The breeding season is one of the few times moose form small groups - normally they are solitary creatures.

Cows remain pregnant for about 8 months and calving occurs in late May through early June. Calves are born with a reddish brown coat with no spots and their coat darkens with age. Cows often have twins and sometimes triplets. There are approximately 1,800 moose on the north side of the Alaska Range in Denali National Park and Preserve.

Learn More

Showing results 1-3 of 3

  • Denali National Park & Preserve

    Interrelationships of Denali's Large Mammal Community

    a wolf carrying a bloody caribou leg down a dirt road

    Denali is home to a daily life and death drama for many animals, though the 'big five' mammal species stand out in the minds of many visitors. In addition to the opportunities for viewing or photographing Interior Alaska’s large mammals, Denali is a great natural laboratory to study the species and their interrelationships. Unlike the rest of Interior Alaska, the Denali carnivore/ungulate community has been little affected by human harvests for several decades. Read more

  • Moose Surveys

    a moose cow and calf in brush

    By estimating moose numbers, wildlife managers can understand if the local population of animals can be considered 'natural and healthy.' The information is also used in crafting hunting regulations. Moose populations also indicate the biological integrity of an area. Read more

  • Denali National Park & Preserve

    Rutting Behavior of Moose

    two bulll moose wading in a pond

    Weighing up to 1,600 pounds each, bull moose spar and sometimes brutally fight for a few weeks each autumn for the right to mate with females. Read more

Tags: moose , denali , DENA