Eastern gorilla
The eastern gorilla ("Gorilla beringei") is a critically endangered species of the genus "Gorilla" and the largest living primate. At present, the species is subdivided into two subspecies. Grauer's gorilla, formerly known as the eastern lowland gorilla ("G. b. graueri") is more populous, at about 3,800 individuals. The mountain gorilla ("G. b. beringei") has only about 1000 individuals. The International Union for the Conservation of Nature mentioned illegal hunting in its assessment of threats to the species.
Mammals of Glacier National Park (U.S.)
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.