You can’t have a gorilla safari without one although there are actually four species. The main one to be seen on wildlife watching expeditions is the mountain gorilla, found in two locations: the Virunga Mountains, a range of extinct volcanoes that border the Democratic Republic of Congo, Rwanda and Bwindi Impenetrable National Park in Uganda. The eastern lowland gorilla is the largest of all, but with desperately dwindling populations. They reside in the tropical rainforests of the Congo Basin, but years of civil unrest have reduced their habitats drastically. Calmer times bode well for tourism but it is still early days. The denser and more remote the better, in terms of rainforest habitat for the western lowland gorilla, with widespread populations across the Central African Republic, Equatorial Guinea, Gabon, the Republic of Congo, the Democratic Republic of Congo and Cameroon, although numbers have also been in serious decline. The cross river gorilla is indigenous to Cameroon and Nigeria, where deforestation has been a major threat to their populations.