Ribbon Seal
Polar Bear
Date 1916.
Source http://www.flickr.com/photos/biodivlibrary/6871385232
Author Fuertes, Louis Agassiz; Nelson, Edward William
Full title The larger North American mammals.
Source: https://commons.wikimedia.org/wiki/File:The_larger_North_American_mammals_(Page_438)_(6871385232).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 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.

The ribbon seal (Histriophoca fasciata) is a medium-sized pinniped from the true seal family (Phocidae). A seasonally ice-bound species, it is found in the Arctic and Subarctic regions of the North Pacific Ocean, notably in the Bering Sea and Sea of Okhotsk. It is distinguished by its striking coloration, with two wide white strips and two circles against dark brown or black fur.