Steller sea lion
The smaller mammals include wolverines, beavers, Canadian lynxes, porcupines, martens, river otters, red foxes, coyotes, ground and flying squirrels, hoary marmots, weasels, snowshoe hares, several species of voles and mice, and pikas. A few bison have been established in two herds in the park. Cougars are considered possible but have not been documented. The waters along the coast host whales, porpoises, harbor seals and sea lions. The endangered Steller sea lion may be found in park waters.