about 7 months ago — In 1925, two medical students spent 1,500 hours dissecting a human nervous system while keeping it fully intact - only 4 exist in the world. I like it I hate it Via awesome 13 6 Are You saw in the previous post? This perfect shot of an eagle Don't miss the next one! The Korawai tribe is an uncontacted tribe that lives in the jungles of Papa New Guinea. They live in tree houses that are situated far above the jungle floor.