Author Carl Koldewey (1837–1908)   
Description
English: Polar Bear as a Watchdog
Subject: Polar bear, Building, ice and snow
Tag: Polar, Aquatic Mammals
Date 1874
Source/Photographer
English: Koldewey, Karl (1874) German Arctic Expedition of 1869-70, and Narrative of the Wreck of the 'Hansa' in the Ice, London: Sampson Low, Marston, Low, & Searle, p. 98
Source: https://commons.wikimedia.org/wiki/File:FMIB_43793_Polar_Bear_as_a_Watchdog.jpeg

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.