The unique wildlife of the Arctic is on display at this zoo, the only one in North America that specializes in northern animals, including snow leopards, Amur tigers and Tibetan yaks. Alaskan native species, from wolverines and moose to caribou and Dall sheep, are abundant. What kids will love watching, however, are the bears. The zoo has all four Alaskan species (brown, black, glacier and polar), but the polar bears are clearly the star attraction.