By looking back many years, scientists have investigated the evolution of polar bears from brown bears, specifically skin colour, skull and ear shape, and digestion of seal fat. …show more content…
They were white and they were living on the ice, but brown bears were not living on the ice, they lived in the forest and they were brown. Scientists believe that, polar bears are the one species that it is the most realistically related to brown bears. Polar bears skin colour is black but they have thick and white fur, which brown bears do not. Brown bears have black skin but their fur colour is highly flexible, reaching from greyish white through bluish and brownish shades to almost black. Also, they can be called shaggy haired