Grizzly River - Grizzly Bears (Nature Documentary) DEMO
Channel: discovery HD
Date: 2017-08-12

Grizzly River - Grizzly Bears Nature Documentary

Fascinating and beautiful documentary on the lives of Grizzly Bears in their river habitat throughout the year. From stalking prey, fishing for salmon, and the role of Alpha Males. 

The grizzly bear is any North American subspecies of the brown bear, such as the mainland grizzly (U. a. horribilis), the Kodiak (U. a. middendorffi), the peninsular grizzly (U. a. gyas) and the recently extinct California grizzly (U. a. californicus). Specialists sometimes call the grizzly the North American brown bear because the grizzly and the brown bear are one species on two continents. In some places, some may nickname the grizzly the silvertip for the silvery, grizzly sheen in its fur.
Since the mainland grizzly is so widespread, it is representative and archetypal for the whole subspecific group. Even so, classification is being revised along genetic lines. Its closest relatives are the European cave bear and the polar bear.

Except for females with cubs, grizzlies are normally solitary, active animals, but in coastal areas, grizzlies gather around streams, lakes, rivers, and ponds during the salmon spawn. Every other year, females (sows) produce one to four young (usually two) which are small and weigh only about 500 grams (1 lb). A sow is protective of her offspring and will attack if she thinks she or her cubs are threatened.