Food
Yes
They dig up to 4-16 inches deep, it depends really.
I think because they might be endangered. I'm not sure....
they dig a burrow in the snow
They use their large wide paws to dig it, or they find one that's already been dug out and improve it themselves.
They can dig in the snow, swim, hunt for seals, and whatnot.
the same reson it dosent need a brain, because all it has to do is dig, dig, dig
polar bears
female bears dig out a den when they're having cubs. Apart from that they stay right on the ice. They're so well insulated that they really don't need much shelter.Polar bears dig holes in the snow and sleep there. They also make a temporary ice cave if there is a blizzard. Most of the day they romp around.
People build huts/homes. Bears don't. Bears are animals and do not have higher order thinking skills required to build things. They find a cave or dig a hole, but do not build.
bears need to gather a lot of fat so they eat a lot before the winter then they make a den that might have some leaves and maybe a few berries
No, bears do not live in caves but will dig one for hibernation.