Part 2 of 3. A look at black bears in the Anchorage area, where some ursines have become so used to their human neighbors that they've taken to living on a golf course. Bear ecologist Chris Morgan's odyssey then takes him north to Denali National Park, where grizzlies share the wilderness with foxes, wolves and moose; and to Prudhoe Bay, an Arctic area that's undergone drastic changes due to oil development.