We spent five days gorilla trekking in the Virunga Volcanoes National Park, Rwanda. On this particular day we visited the Hirwa Group, and saw Kabatwa and her twin baby boys, Isango and Isangano. They were born in February 2011 and were six months old when this was filmed. I would just mention that this was a photographic tour lead by a professional wildlife photographer, and camera shutters from DSLR cameras are audible in the video. I was the only non photographer in the group. The gorillas are habituated to this sound and it does not disturb them in any way.