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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 ...
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 ]
Good night, bear! I loved watching this video - I guess I never realized that bears cover up when they get in bed just like we do! ABC News commenters also enjoyed watching the bear prepare to go ...
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How big do bears get in New York? 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.
Bears are prolific scavengers and kleptoparasites, stealing food caches from rodents, and carcasses from other predators. [55] [86] For hibernating species, weight gain is important as it provides nourishment during winter dormancy. A brown bear can eat 41 kg (90 lb) of food and gain 2–3 kg (4.4–6.6 lb) of fat a day prior to entering its ...
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Grizzly bears also do not defecate or urinate throughout the entire hibernation period. The male grizzly bear's hibernation ends in early to mid-March, while females emerge in April or early May. [53] In preparation for winter, bears can gain approximately 180 kg (400 lb), during a period of hyperphagia, before going into hibernation. [54]