This photo provided by Montana Department of Transportation shows a black bear exiting an animal passageway in Polson, Mont. In 2011, game cameras documented 22,466 animals moving through the passages, arcing over U.S. Highway 93 atop Evaro Hill. Thatís up from 12,022 critters in 2010. The tally included 25 species, grizzly bears, river otters, badgers, elk and bobcats among them. (AP Photo/Montana Department of Transportation, Courtesy of CSKT, MDT & WTI-MSU)