Transcription: Well, there are three different kinds of gorilla. There's the mountain gorilla, the western lowland and the eastern lowland. The mountain gorilla is by far the rarest of the lot, only a population of about 350. And it's restricted in two areas, one in a forest in Uganda and the other in the Virunga volcanoes in a national park that actually straddles three different countries, Zaire, Rwanda and Uganda. They've been threatened by a number of different things over the years Rainforest destruction is one of the most important threats, obviously, as their habitat declines and the forests are chopp ...