Eastern gorilla
There are two recognised subspecies of eastern gorilla: the mountain gorilla ("Gorilla beringei beringei") of the volcanic slopes of Rwanda, Uganda and eastern Democratic Republic of Congo; and Grauer's gorilla or eastern lowland gorilla ("Gorilla beringei graueri") in eastern Democratic Republic of Congo.
Largest prehistoric animals
The largest-known eugenedont is a yet unnamed species of "Helicoprion" discovered in Idaho. The specimens suggest an animal that possibly exceeded in length.