Andre Bahuma, a warden at the Virunga Na

Andre Bahuma, a warden at the Virunga National Park, plays with an orphaned mountain gorilla in the gorilla sanctuary in the park headquarters at Rumangabo in the east of the Democratic Republic of Congo on July 17, 2012. The Virunga park is home to some 210 mountain gorillas, approximately a quarter of the world's population. The four orphans that live in the sanctuary are the only mountain gorillas in the world not living in the wild, having been brought here after their parents were killed by poachers or as a result of traffickers trying to smuggle them out of the park. "They play a critical part in the survival of the species" says Emmanuel De Merode, Director for Virunga National Park. He adds that the ICCN does not currently have access to the gorilla sector of the park due to the M23 rebellion. AFP PHOTO/PHIL MOORE (Photo credit should read PHIL MOORE/AFP/GettyImages)