It acts as a blanket.
Hollow hair and fat
to keep the polar bear skin warm
a polar bear needs its food sources and fur to keep it warm
Polar Bears have thick coats to keep them warm.
The fur of the polar bear is very thick which helps the polar bear keep warm.
to protect and keep the cubs warm
so it can keep warm
to keep/or make them warm
It allows them to keep their paws warm and allow them to keep from clipping on the ice by creating friction.
to keep them warm
The polar bear has two adaptive features designed to keep it warm; - Fur - Fur in between it's toes and on the pads of it's feet.
yes hats why they are able to keep warm