Sunday, March 29, 2009
english aa 3
BROWN BEARS
Brown bears are usually solitary animals with the exception of females and their cubs but at times they do congregate.Dramatic gatherings of grizzly bears can be seen at prime Alaskan fishing spots when the salmon run upstream for summer spawning. In this season, dozens of bears may gather to feast on the fish, craving fats that will sustain them through the long winter ahead.
Brown bears dig dens for winter hibernation, often holing up in a suitable-looking hillside. Females give birth during this winter rest and their offspring are often twins.Grizzly bears are powerful,top of the food chain. Nearly half of all brown bear cubs born are likely to die before they’re a year old. Some die of disease, and others die of starvation. Predators such as wolves, adult male bears—even a cub’s own father—are threats, especially to cubs that are separated from their mothers. But mother brown bears are fiercely protective, so many cubs do survive. Giving birth to 1 to 3 cubs and being hunted down by poachers i can see that the brown bears population is droping.
Some of the brown bears neighbours Elk, Moose, Cougars, Gray Wolves, Black Bear, Coyote, Dall’s Sheep.
Although grizzlies will, for the most part, avoid contact with humans, they are sometimes unpredictable and should be given plenty of room; every year, bears maul or kill humans. They move with a slow shambling walk, the low-slung head swinging from side to side. They can move very quickly, however, and even horses find it difficult to evade a rushing grizzly.So we must beware of them.We must educate the people in America let them know more about this mammals so that both bears and human can live peacefully together
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