


POLAR BEARS Underwater
Ursus maritimus
© Mark Philpott
The Polar Bear is the world’s largest land carnivore and also the largest bear, together with the omnivorous Kodiak Bear, which is approximately the same size. An adult male weighs around 350–680 kg (770–1,500 lb), while an adult female is about half that size. Although it is closely related to the brown bear, 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 the seals which make up most of its diet. Although most polar bears are born on land, they spend most of their time at sea. Their scientific name means “maritime bear”, and derives from this fact. Polar bears can hunt their preferred food of seals from the edge of sea ice, often living off fat reserves when no sea ice is present.
The polar bear is native largely within the Arctic Circle (north) encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. There are no penguins in the Arctic (north) and no polar bears in the antarctic (south).
Source: http://en.wikipedia.org/wiki/Polar_bear
Other posts:
(Source: bruisepristinex, via ocean-ology)
polar bearss. (: