Eastern gorilla
Grauer's gorillas and mountain gorillas were previously thought to be two of the three subspecies of one single species, the gorilla ("Gorilla gorilla"). However, genetic research has shown that the two eastern subspecies are far more closely related than the western subspecies: the western lowland gorilla ("G. gorilla gorilla"), which justified the separate classification. The two eastern subspecies are now classified as "G. beringei".
Mammals of Olympic National Park
The elk, or wapiti ("Cervus canadensis"), is one of the largest species of deer in the world and one of the largest mammals in North America and eastern Asia. In the deer family (Cervidae), only the moose, "Alces alces" (called an "elk" in Europe), is larger, and "Cervus unicolor" (the sambar deer) can rival the "C. canadensis" elk in size. Elk range in forest and forest-edge habitat, feeding on grasses, plants, leaves, and bark.