Agence France-Presse: Wildlife officers escaped into the forest when fighters loyal to renegade general Laurent Nkunda occupied part of the park as they launched their march on Goma, the main city in the east of DR Congo, which is now surrounded. Set up in 1925, Virunga covers some 7,800sw km. Its varied terrain includes two of Africa’s most active volcanoes, swamps and snow-capped mountains. It is also home to more than half of the world’s 700 remaining mountain gorillas as well as 20,000 …