Most polar bears don't have a safe place to go. If there's danger, they either run away or turn and fight.
to keep the polar bear skin warm
a polar bear needs its food sources and fur to keep it warm
The fur of the polar bear is very thick which helps the polar bear keep warm.
It allows them to keep their paws warm and allow them to keep from clipping on the ice by creating friction.
to protect and keep the cubs warm
Polar Bears have thick coats to keep them warm.
so it can keep warm
to keep/or make them warm
The similarities of a polar bear and a walrus are that they both have a lot of fat to keep them warm in the Arctic.Also they can both store food as fat to keep there energy up.
Their thick coats keep the cold out, along with hibernation.
It acts as a blanket.
In a snow bank of coarse!