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Bears and many other animals like skunks, raccoons, and even birds do go into a deep sleep - torpor - but for much shorter amounts of time; only up to a few hours or a day at most. As they sleep ...
Torpor is different because bears go into deep sleep for much shorter amounts of time - up to a few hours or a day at most. They can still active but everything just kind of slows down .
Other organisms, such as a black bear, enter torpor and switch to multi-day cycles rather than rely on a circadian rhythm. However, it is seen that both captive and wild bears express similar circadian rhythms when entering torpor. Bears entering torpor in a simulated den with no light expressed normal but low functioning rhythms.
Larger mammals (e.g. ground squirrels) and bats show multi-day torpor bouts during hibernation (up to several weeks) in winter. [1] During these multi-day torpor bouts, body temperature drops to ~1 °C above ambient temperature and metabolism may drop to about 1% of the normal endothermic metabolic rate.
State wildlife officials estimate the state's black bear population has remained stable for the past 10 years at 50,000 to 81,000 to animals. Bears can hibernate under decks, in crawl spaces
Aestivation (Latin: aestas (summer); also spelled estivation in American English) is a state of animal dormancy, similar to hibernation, although taking place in the summer rather than the winter. Aestivation is characterized by inactivity and a lowered metabolic rate, that is entered in response to high temperatures and arid conditions. [ 1 ]
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 ...
Metabolic denning (hibernation/torpor) is unclear in Arctodus. Like polar bears, male and unmated female A. simus may have forgone denning, leaving maternal denning by females as the preferred explanation behind the recovery of the small, yet relatively complete individuals recovered from caves.