Grizzly Bear is Active Animal

Grizzly bear (Ursus arctos horribilis), also known as the Silvertip Bear, a grizzly, or the North American brown bear, is a subspecies of the brown bear (Ursus arctos), which generally live in the highlands of western North America. This subspecies is expected to fall from Ussuri brown bears which crossed to Alaska from eastern Russia 100,000 years ago, though they did not move south until 13,000 years ago.

Except for his son and daughter, Grizzlies normally solitary, active animals, but in coastal areas, together grizzly rivers, lakes, rivers, and ponds during the salmon spawn. Every other year, females (pigs) produce 1-4 young (usually two) which are small and weigh only about 500 grams (1 lb). Pig is protect her and will attack if she thinks she or her child is threatened.

Grizzlies most adult female weighs 130-200 kg (290-440 lb), while adult males weigh an average of 180-360 kg (400-790 lb). The average total length in this subspecies is 198 cm (6.50 ft), with an average shoulder height 102 cm (3.35 ft) and hindfoot length of 28 cm (11 in). Newborn bears may weigh less than 500 grams (1.1 lb). In the Yukon River area, mature female bears can weigh as little as 100 kg (220 lb). On the other hand, a male grizzly has been recorded occasionally very large than normal size, weighing up to 680 kg reported (1,500 lb). Although variable from blond to almost black, grizzly bear fur is usually brown with white tips. A pronounced hump appears on their shoulders, hump is a good way to distinguish a black bear from a grizzly bear, as black bears do not have this hump.

Brown bear found in Asia, Europe and North America giving them one of the wide range of species of bear. Grizzly bear ancestors originated in Eurasia and traveled to North America around 50,000 years ago. This is an occasion that very recently in evolutionary time, causing the North American grizzly bear to be very similar to the brown bears inhabit Europe and Asia.

In North America, grizzly bears previously ranged from Alaska to Mexico and as far east as the west coast of Hudson Bay. In North America, this species is now found only in Alaska, south through much of western Canada, and into portions of the northwestern United States including Idaho, Montana, Washington and Wyoming, extending as far south as Yellowstone and Grand Teton National Parks, but is most often found in Canada.

In September 2007, a hunter produced evidence of grizzly bears returning to the Selway-Bitterroot wilderness ecosystem, in Idaho and western Montana, by killing the male grizzly bear.

Originally rate also includes many Great Plains and the southwestern part of the country, but the people have disappeared in most areas.

Grizzly bear appears on the flag of California, though they are already extinct in the state, the latter after shot in 1922.

In Canada, there are approximately 25,000 grizzly bears occupying British Columbia, Alberta, Yukon, Northwest Territories, Nunavut, Ontario and northern Manitoba. Combining Canada and the United States, grizzly bears inhabit approximately half of their historical range region. In British Columbia, grizzly bears inhabit approximately 90% of their original territory. There are approximately 25,000 grizzly bears in British Columbia when Europe's population. However, the population size decreases drastically as hunting and loss of habitat. In 2008, it is estimated there are 16,014 grizzly bears. Population estimates for British Columbia are based on hair-slung, DNA-based preparations, mark-recapture and a refined multiple regression model.

Other provinces and the United States can use a combination of methods to estimate population. Therefore, it is difficult to say exactly what the method used to produce total population estimates for Canada and North America, as they likely developed from a variety of research. The grizzly bear currently has legal protection in Mexico, European countries, some regions of Canada and in the United States. However, it is expected that repopulating former range will be a slow process, for various reasons, including Reintroduksi from predators compete to the counties, the effect of re-introducing such a large animal to areas prized for agriculture and livestock, and because of familiarity breeding bears slow. Currently there are about 55,000 wild grizzly bears in North America.

Brown bear (grizzly bear is a subspecies) can live up to 30 years in the wild, though 20 to 25 is normal.