Extra fences and military patrols have been put in place to try and keep the situation under control, but the bears are growing accustomed to the lights and sounds used to scare them off.
This is largely due to the fact that bears who grow accustomed to humans tend to become more dangerous than their wilder, shier counterparts and often have to be killed.
The duo folded these data into a computer model of births and deaths, taking into account factors--such as age, sex, whitebark pine crop size, and whether a bear had become accustomed to humans--that influenced the odds of survival of any particular tracked bear.
Bears in some regions such as Yellowstone and The Grand Tetons have become accustomed to bear spray.
Bears and humans grew overly accustomed to one another and, on a single night in 1967, two backpackers were killed in separate bear attacks as they slept in Glacier National Park in Montana.Fearing similar tragedies, Yellowstone Park officials decided it was time for grizzly bears to return to a wild diet.
"Regret you did not inform us bear wanted for work in extreme North, bear born near Hamburg, not accustomed to cold weather".
Jim McMahon, the Bears' quarterback who should be accustomed to this, said he wore gloves today for the second time in his pro career.
Elk hunters, who try to obscure their scent and walk quietly through the woods there, aren't as accustomed to carrying bear spray despite studies showing it is a powerful deterrent that can save human and bear lives.
At an advance screening a few days ago, director Tom Harper, 36, who oversaw all six episodes, a cast of hundreds, loads of badly behaved hunting dogs, a bear, and nervy horses not accustomed to the smoke of battle, told the Observer: "You get so close to the work it's very hard to look at it with any objectivity.
