Grizzly bear

Grizzly bear

Grizzly bear is the 2nd strongest bear in the world before Polar bear . It is a apex predator of Alaska. It has strong smelling power. It has 8 cm canine teeth and 10 cm nails. It is a omnivores animal . It is the world largest carnivore on land same as polar bear. 

Classification

 However, after modern genetic testing, the grizzly joined the brown bear (U. arctos). So in Eurasia, it is the "brown bear;" in North America, it is the "grizzly." In other words, the grizzly and the brown bear are one species on two continents. Currently, Rausch and others classify three subspecies of the new "North American brown bear:" U. a. horribilis, middendorffi, and gyas. 

Range and population

In North America, grizzly bears previously ranged from Alaska to Mexico and as far east as the western shores of Hudson Bay. In North America, the 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 commonly found in Canada. Only about 1,500 grizzlies are left in the lower 48 states of the US Of these, about 800 live in Montana.

Hibernation

In preparation for winter, bears can gain approximately 400 lb (180 kg), during a period of hyperphagia, before going into false hibernation.The bear often waits for a substantial snowstorm before it enters its den: such behavior lessens the chances predators will find the den. The dens are typically at elevations above 1,800 m (5,900 ft) on north-facing slopes. There is some debate amongst professionals as to whether grizzly bears technically hibernate: much of this debate revolves around body temperature and the ability of the bears to move around during hibernation on occasion. 

Diet

Canadian or Alaskan grizzlies are larger than those that reside in the American Rocky Mountains. This is due, in part, to the richness of their diets. In Yellowstone National Park in the United States, the grizzly bear's diet consists mostly of whitebarkpine nuts, tubers, grasses, various rodents, army cutworm moths, and scavenged carcasses. None of these, however, match the fat content of the salmon available in Alaska and British Columbia. With the high fat content of salmon, it is not uncommon to encounter grizzlies in Alaska weighing 1,200 pounds (544 kg).

PREY AND ENEMIES

prey

enemies

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