Grizzly Bear

Description:

The grizzly bear (Ursus arctos horribilis), also known as the silvertip bear, the grizzly, or the North American brown bear, is a subspecies of brown bear (Ursus arctos) that generally lives in the uplands of western North America. This subspecies is thought to descend 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.[1] Grizzlies are normally solitary, active animals, but in coastal areas, the grizzly congregates alongside streams, lakes, rivers, and ponds during the salmon spawn. Every other year, females (sows) produce one to four young (commonly 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. Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Carnivora Family: Ursidae Genus: Ursus Species: U. arctos Subspecies: U. a. horribilis

Habitat:

Grizzly bears are continuously distributed from Northern Canada to near Missoula, Montana. Along this distribution, there are only two fractures where movements appear significantly reduced. These areas include the Trans-Canada transportation corridor between Calgary, Alberta and Revelstoke, B.C. and the Highway 3 transportation corridor between Pincher Creek, Alberta, and Salmo, B.C. In addition to the highways and railways, along these corridors, there are areas of intensive human use including rural and urban development, agriculture, ranching, forestry, coal mining, and 4-season recreation complexes. Because grizzly bears disperse gradually, successful dispersal across the corridors is reduced forming near Island populations. Understanding how grizzly bears use habitats, move, and survive in such highly developed landscapes is important to guide ongoing developments to ensure grizzly bear connectivity across these fractures is not further reduced. Using GPS radio-collars, this project has monitored 12 gri

Notes:

Interesting facts Did you know that a grizzly bear can match a horse's speed for 330 feet? The arms of a grizzly are so strong they can hug a person to death. The grizzly was once seen to kill a black bear with one blow knocking it in to a tree. The grizzly can kill anything equal or less than its size. The Indians attributed supernatural powers to the grizzly. Why it's threatened The grizzly bear is a threatened species. Which means it is not endangered. The grizzlies are threatened because of logging and mineral development. Another threat is man killing their favorite kind of fish, cutthroat trout Due to overfishing most of the cutthroat trout are dead. In the 1970's there were only 300 grizzlies left in the lower states. The grizzly bear has been hunted since the stone age. The grizzly has a little protection Yellowstone National Park in Montana. Good facts The grizzly bear is a huge animal. It's pretty heavy. It weighs 300-over 800 pounds. Its shoulders are 41 inches but its tail is only 3-5 inches long. Most grizzlies grow to be twice the size of a tiger. Grizzlies have 2-4 cubs every 2-4 years. Females breed at the age of 5 . If a female is protecting her cubs she'll fight to the death. I TOOK THIS PICTURE WHEN GR.8 WENT TO JASPER , WE WERE COMING BACK FROM OUR HIKE. IT WAS ON THE ROAD!