Rwanda, a silverback gorilla in the Parc Des Volcans.

Silverback mountain gorilla.

Mountain Gorilla Gorilla Gorilla . Single male sitting amongst vegetation with light shining off coat head and shoulders.

Western lowland gorilla in captivity in Chessington zoo looking through bars of cage.

Close view of Mountain Gorilla in natural habitat in the Virunga mountain rangeAfrican Congo Zairean Central Africa

Portrait of mountain gorilla.

Single Silverback male mountain gorilla amongst vegetation in the Virunga Mountains.

Single mountain gorilla.

Gorilla in Rwandan forest.

Mountain Gorilla sitting on the ground eating at Virunga National Park Zaire