Line art drawing of a polar bear.
Author Pearson Scott Foresman
Source: https://commons.wikimedia.org/wiki/File:Polar_Bear_(PSF).png

The polar bear (Ursus maritimus) is a carnivorous bear whose native range lies largely within the Arctic Circle, encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. It has evolved to occupy a narrower ecological niche, with many body characteristics adapted for cold temperatures, for moving across snow, ice and open water, and for hunting seals, which make up most of its diet.