The black bear used to be one of the most commonly seen large animals
because in Yosemite and Sequoia national parks they lived off of garbage
and tourist handouts. In Yosemite this bear has learned to open car doors
in search of food. Campaigns to bearproof garbage containers in wild areas
have been difficult, because as one biologist put it, "There is a
considerable overlap between the intelligence levels of the smartest bears
and the dumbest tourists."
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