Moose large sized character jug produced by Quail Ceramics of the Midlands, England, circa 2020. The moose is a member of the New World deer subfamily. It is the largest and heaviest species in the deer family. Most adult male moose have distinctive broad, palmate ("open-hand shaped") antlers. Moose typically inhabit forests and temperate broadleaf and mixed forests of the Northern Hemisphere in temperate to subarctic climates. Currently, most moose occur in Canada, Alaska, New England, the Baltic states, Poland, Kazakhstan, and Russia. Its diet consists of both terrestrial and aquatic vegetation. Predators of moose include wolves, bears, humans, wolverines, and orcas. Moose do not form herds and are solitary animals, aside from calves who remain with their mother for about 18 months, at which point the cow chases them away. Although generally slow-moving and sedentary, moose can become aggressive, and move quickly if angered or startled. Their mating season in the autumn features energetic fights between males competing for a female.