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Hibernation is a state of minimal activity and metabolic depression undergone by some animal species. Hibernation is a seasonal heterothermy characterized by low body-temperature, slow breathing and heart-rate, and low metabolic rate. It is most commonly used to pass through winter months – called overwintering.
The polar bear (Ursus maritimus) is ... Most polar bears are active year-round. Hibernation occurs ... This tactic is the primary hunting method from winter to early ...
Bears normally stock up on food then hibernate in their dens during the coldest winter months. Bear hibernation is “strongly tied” to weather patterns and food availability, according to a ...
A “Bear-y” Cozy Winter - Learn about bear hibernation in this month’s Nature Center Notes
Bears of northern regions, including the American black bear and the grizzly bear, hibernate in the winter. [ 110 ] [ 111 ] During hibernation, the bear's metabolism slows down, its body temperature decreases slightly, and its heart rate slows from a normal value of 55 to just 9 beats per minute. [ 112 ]
To prepare for hibernation, bears step up their eating, putting on up to 3 pounds a day in the fall and sometimes into winter. That can mean foraging for a meal for up to 20 hours a day, and they ...
Polar bears differ from black bears, grizzlies, and other bear species where both sexes hibernate in that only females use hibernacula. Like other female bears, polar bears use hibernacula as maternity dens. Also like other species, they tend to dig dens into the earth, although their Arctic hibernacula are usually covered with snow by the time ...
This is known as hibernation if it occurs during winter or ... and polar bears suggest ... These rodents use torpor as means to survive winter and live to reproduce ...