As winter weather rolls in, black bears are bedding down for hibernation. Their heart rate slows from 50 beats per minute to about 10 beats per minute. Bears maintain a body temperature close to normal during hibernation which lets them react to danger and sources of food faster than many other hibernating animals. Comparing Black Bears and Grizzly Bears. 2. Black bears are masters of adaptation Hibernation is their way of surviving a long winter when there’s little food available. Some other economists also believe the Bank of Canada will hibernate … Their body temperature drops by only 7 or 8 degrees centigrade (instead of freezing like a ground squirrel). Bears do not go into complete hibernation the way rodents do. Bears enter a lighter state of sleep called torpor. So, if they hibernate for 6 months in MN, they probably hibernate for longer than that in parts of Canada. Kim Titchener, the founder of Bear Safety and More, says startling bears out of hibernation is rare, but it has happened from time to time in Alberta. Knowing the difference between a grizzly bear and a black bear … While most of us feel like waiting out the chilly winter under a big, fluffy duvet, bears’ hibernation takes cold-weather sleep to a whole new level. In northern areas of the U.S. and Canada, bears hibernate as long as 8 months without moving from their den. Grizzly bears and black bears generally do not eat, drink, defecate, or urinate during hibernation. Black bears don't entirely sleep or rest for the entire day, and amazingly female bears give birth over the winter while hibernating. 10 unexpected facts about bear hibernation. As noted, hibernation occurs when food becomes scarce, so it would be different each year. Grizzly Bear In contrast, grizzly bears ( Ursus arctos horribilis ) hibernate for 5 to 7 months depending on food availability in their natural habitat. If you are visiting here, you can help our conservation efforts by reporting your bear sightings. If conditions one year were favorable to a longer growing season, and a mild autumn, they would probably enter hibernation later. They live off of a layer of fat which was built-up during summer and autumn. Bears typically give birth in late January to early February and a litter size is between one and six … Here are some cool facts you may not have known. Parks Canada wildlife specialists collect data on where bears spend their time in the national parks. Rick Stronks, the chief naturalist at Algonquin Provincial Park, shares some interesting facts about these seasonal deep sleepers: 1. Bears have the ability to remain stationary for longer periods than rodents without feeding or eliminating waste. Bank of Canada to signal long hibernation (as bears will do) Michael Babad. 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