A young grizzly bear rubs against a rock at ZooMontana in Billings, Mont. on Friday Dec. 17, 2010. The bears were given to the zoo after their mother led the animals on a summer rampage through a ... more 
A young grizzly bear rubs against a rock at ZooMontana in Billings, Mont. on Friday Dec. 17, 2010. The bears were given to the zoo after their mother led the animals on a summer rampage through a Montana campground that killed one person and injured two more. less 
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Associated Press | Photo By Matthew Brown
Mon, Dec 20, 2010 6:50 PM EST