They seem to be inferior, but it turns out they are also living witnesses, examples of modern society, how to protect the forest and harmony with nature.
Known as one of the only tribes on earth that does not live on the ground, the Korowai tribe is located in Southeast Papua, Indonesia.
Archaeologists found fossil skeletons of 27 massacred hunter-gatherers 10,000 years ago in Nataruk, near Lake Turkana, Kenya.
During excavation in Narigua, Coahuila state (Mexico), archaeologists discovered about 8,000 stone carvings, dating back over 6,000 years.