Gorilla
Gorillas are ground-dwelling, predominantly herbivorous apes that inhabit the forests of central Sub-Saharan Africa. They are classified in the genus Gorilla which is divided into two species: the eastern gorillas and the western gorillas (both critically endangered), and either four or five subspecies. They are the largest living primates. The DNA of gorillas is highly similar to that of humans, from 95 to 99% depending on what is included, and they are the next closest living relatives to humans after the species of "Pan"; the chimpanzees and bonobos.
List of fossil primates
The order Primates, established by Linnaeus in 1758, includes humans and their immediate ancestors. However, contrarily to the common opinion, most primates do not have especially large brains. Brain size is a derived character, which only appeared with genus "Homo", and was lacking in the first hominid. In fact, hominid encephalization quotient is only 1.5 Ma more recent than that of some dolphin species. The encephalization quotient of some cetaceans is therefore higher than that of most primates, including the nearest relatives of humans, such as "Australopithecus".