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The polar bear (Ursus maritimus) is a large bear native to the Arctic and nearby areas. It is closely related to the brown bear, and the two species can interbreed.The polar bear is the largest extant species of bear and land carnivore, with adult males weighing 300–800 kg (660–1,760 lb).
The American black bear (Ursus americanus), or simply black bear, is a species of medium-sized bear endemic to North America. It is the continent's smallest and most widely distributed bear species. It is an omnivore, with a diet varying greatly depending on season and location. It typically lives in largely forested areas but will leave ...
Bears use shelters, such as caves and logs, as their dens; most species occupy their dens during the winter for a long period of hibernation, up to 100 days. Bears have been hunted since prehistoric times for their meat and fur; they have also been used for bear-baiting and other forms of entertainment, such as being made to dance.
An adult bear will consume anywhere from 20,000 to 24,000 calories per day to prepare for hibernation. Tahoe bears will travel long distances to bulk up before winter. How to protect your home
The average female adult bear in New York is typically around 160 pounds and the average male adult bear's weight is around 300 pounds. According to Curtis, some of the bigger ones have weighed ...
However, in the last 20 years more bears moved in from neighboring states and breeding populations have been established. In recent years, the department estimated the population to be 150 or more ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 23 December 2024. Largest subspecies of brown bears/grizzly bears "Alaskan brown bear" redirects here. Not to be confused with Alaska Peninsula brown bear. This article may be in need of reorganization to comply with Wikipedia's layout guidelines. Please help by editing the article to make improvements ...
Despite long-term inactivity and lack of food intake, hibernating bears are believed to maintain their bone mass and do not suffer from osteoporosis. [ 26 ] [ 27 ] They also increase the availability of certain essential amino acids in the muscle, as well as regulate the transcription of a suite of genes that limit muscle wasting. [ 28 ]