Image title: Male polar white bear walks on pack ice ursus maritimus
Image from Public domain images website, http://www.public-domain-image.com/full-image/fauna-animals-public-domain-images-pictures/bears-public-domain-images-pictures/male-polar-white-bear-walks-on-pack-ice-ursus-maritimus.jpg.html
Date Not given
Source http://www.public-domain-image.com/public-domain-images-pictures-free-stock-photos/fauna-animals-public-domain-images-pictures/bears-public-domain-images-pictures/male-polar-white-bear-walks-on-pack-ice-ursus-maritimus.jpg
Author Regehr Eric, U.S. Fish and Wildlife Service
Source: https://commons.wikimedia.org/wiki/File:Male_polar_white_bear_walks_on_pack_ice_ursus_maritimus.jpg

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 is a large bear, approximately the same size as the omnivorous Kodiak bear (Ursus arctos middendorffi). 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.
Order: Carnivora
Suborder: Caniformia
Family: Ursidae
Genus: Ursus
Species: Ursus maritimus Phipps, 1774[2]
Synonyms:
Ursus eogroenlandicus
Ursus groenlandicus
Ursus jenaensis
Ursus labradorensis
Ursus marinus
Ursus polaris
Ursus spitzbergensis
Ursus ungavensis
Thalarctos maritimus