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Started By
Message
Do bears hibernate?
Posted on 9/15/14 at 10:14 pm
Posted on 9/15/14 at 10:14 pm
I took the grandkids to the zoo this weekend and was astonished when the bear exhibit had a big placard on the wall that said "Bears don't hibernate". Evidently, they "den".
LINK
Why does everything we were ever taught get ultimately reversed?
LINK
Why does everything we were ever taught get ultimately reversed?
9
Posted on 9/15/14 at 10:15 pm to Big Scrub TX
Not with global warming. No.
Posted on 9/15/14 at 10:15 pm to Big Scrub TX
quote:
Why does everything we were ever taught get ultimately reversed?
If a scientist can't invent or discover something he will re-explain something already known, give it a different term, and market it as his discovery. Morons.
Posted on 9/15/14 at 10:15 pm to Big Scrub TX
yes they do, as do most mammals
Posted on 9/15/14 at 10:16 pm to Big Scrub TX
I think its just in cold climates.
Posted on 9/15/14 at 10:16 pm to Need4Speed
They didn't teach you much at CHS, did they?
Posted on 9/15/14 at 10:17 pm to Big Scrub TX
Does the Pope shite in the woods?
Posted on 9/15/14 at 10:17 pm to Big Scrub TX
they do on the planet pluto
Posted on 9/15/14 at 10:17 pm to Need4Speed
quote:
yes they do, as do most mammals
nope
Posted on 9/15/14 at 10:18 pm to Big Scrub TX
What kind of bears you talking about?
Posted on 9/15/14 at 10:20 pm to StickyFingaz
big ones
Posted on 9/15/14 at 10:21 pm to Big Scrub TX
No but beavers do. Just ask my wife.
Posted on 9/15/14 at 10:26 pm to Big Scrub TX
Some do. Just depends how fine you want to split hairs.
LINK
If you say bears hibernate, no one can really argue with you.
quote:
There is some discussion as to whether the most famous hibernator, the bear, actually hibernates. While a bear is denning, its heart rate, breathing rate, and metabolic rate do slow down. In addition, a bear’s body temperature is reduced.
BUT! Compared to true hibernators, like ground squirrels, a bear’s metabolic rate is significantly less depressed and a bear’s body temperature is reduced only a little. For example, a ground squirrel’s body temperature during hibernation is reduced to near freezing. Alternatively, bears reduce their body temperatures by about only 10 degrees or so. Moreover, ground squirrels have to awaken about every week for about a day, eat stored food, pass waste, and then return to hibernation. They continue this cycle all winter.
Bears don’t do this. Bears can go for more than 100 days without eating, drinking, or passing waste. Amazing!
LINK
If you say bears hibernate, no one can really argue with you.
Posted on 9/15/14 at 10:29 pm to RogerTheShrubber
quote:
RogerTheShrubber
You provided the same link from my OP...
Posted on 9/15/14 at 10:30 pm to RogerTheShrubber
quote:
Bears can go for more than 100 days without eating, drinking, or passing waste.
Crazy.
Posted on 9/15/14 at 10:38 pm to Big Scrub TX
quote:
Why does everything we were ever taught get ultimately reversed?
Pandas were not bears until about 1995.
Posted on 9/15/14 at 10:46 pm to Big Scrub TX
quote:
RogerTheShrubber
You provided the same link from my OP...
Right, just highlighted a bit of it.
It says that technically bears hibernate, their metabolism doesn't slow down as much as most animals that do and body temp doesn't fall as much. They can get up and move around in the winter though. LINK
quote:
“In my opinion, bears are the best hibernators,” says Brian Barnes, director of the Institute of Arctic Biology at the University of Alaska Fairbanks. “Their body is a closed system. They can get through winter with only oxygen—it’s all they need.”
This post was edited on 9/15/14 at 10:50 pm
Posted on 9/15/14 at 10:53 pm to Jake88
quote:
Pandas were not bears until about 1995.
That's not exactly true. The taxonomic position of pandas has been argued for years.
This post was edited on 9/15/14 at 11:05 pm
Posted on 9/15/14 at 10:56 pm to Big Scrub TX
I learned that they don't when I went to yellowstone last month, surprised me. Apparently they just aren't very active
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