Hibernating bears produce feces but do not defecate. They produce something called fecal (or poop) plug which they drop when they leave the den.
No, they don't.
The polar bears do not learn to hibernate,it is naturally inherited.
Polar bears don't hibernate, only pregnant females, and that only for three months.
They have to hibernate when they get ready for winter.
Yes, for three months while they are pregnant.
Where there are polar bears there aren't any woods.
only female polar bear hibernate, they hibernate about Nov-Oct month.
No, bears do not stuff leaves up their butt when they hibernate to stop ants. Bears normally find a sheltered den where they hibernate deeply during winter, and they do not eat or defecate during this time. Ants are not typically a concern during hibernation.
9:00pm but when they hibernate 6:15pm
Everyhing from some insects, to squirrels, to polar bears.
Male polar bears do not hibernate. Only females "hibernate." Females tend to hibernate from October or November to March or April. They also tend to give birth during their hibernation. Also, though females can be aroused from sleep quite easily.
I am pretty sure bears since they have more body they can last the longest. :)