Gorilla

Gorillas comprise the eponymous genus Gorilla, the largest extant genus of primates by size. They are ground-dwelling, predominantly herbivorous apes that inhabit the forests of central Africa. The genus is divided into two species and either four or five subspecies. The DNA of gorillas is highly similar to that of a human, from 95–99% depending on what is counted, and they are the next closest living relatives to humans after the bonobo and common phimpanzee.

Gorillas' natural habitats cover tropical or subtropical forests in Africa. Although their range covers a small percentage of Africa, gorillas cover a wide range of elevations. The mountain gorilla inhabits the Albertine Rift montane cloud forests of the Virunga Volcanoes, ranging in altitude from 2,200–4,300 metres (7,200–14,100 ft). Lowland gorillas live in dense forests and lowland swamps and marshes as low as sea level, with western lowland gorillas living in Central West African countries and eastern lowland gorillas living in the Democratic Republic of the Congo near its border with Rwanda.

There are four subspecies of gorillas; the eastern lowland or Grauer's the mountain gorilla thewestern lowland gorilla and the Cross River gorilla. 

Like all great apes, gorillas have arms that are longer than their lets and tend to walk on all four limbs at certain times - a movement is called knouckle.

Gorillas' appearances can vary based on sub-species but for the most part the western subspecies tend to be brownish gray in colour, while the eastern and mountain gorillas tend to have a more blakish coat. Mountain gorillas also have longer and thicker fur which is adapted to their colder mountainous habitat. The three lowland subspecies of gorillas sport short fine hair.