Cyril Ruoso / Baka man and boys making fiber crowns for a ceremony, South East Cameroon, July 2008.

Cyril Ruoso / Baka boy wearing a newly made fiber crown for a night ceremony, South East Cameroon, July 2008.

Cyril Ruoso / Baka woman weaving a basket from plant fibers, South East Cameroon, July 2008.

Cyril Ruoso / Baka child playing with bow and arrow, South East Cameroon, July 2008.

Cyril Ruoso / Close up of the tip of a spear handed down through generations of Baka people, Cameroon, South East Cameroon, July 2008.

Cyril Ruoso / Baka woman carrying large basket full of items through the rainforst during a move between camps, Cameroon, South East Cameroon, July 2008.

Cyril Ruoso / Traditional Baka salad preparation, known as "coco", leaves chopped up on large leaf, Cameroon, South East Cameroon, July 2008.

Cyril Ruoso / Traditional Baka salad preparation, known as "coco", leaves bundled together, Cameroon, South East Cameroon, July 2008.

Cyril Ruoso / Two Baka people sitting by fire in hunting shelter, in rain, Cameroon, South East Cameroon, July 2008.

Cyril Ruoso / Baka hunting camp with two huts, know as Mongolus, mades from sticks and Ngongo (Megaphrynium macrostachyum) leaves, South East Cameroon, July 2008.

Cyril Ruoso / Baka woman making a Mongolus, a hut made from sticks and Ngongo (Megaphrynium macrostachyum) leaves, South East Cameroon, July 2008.

Cyril Ruoso / Baka woman using Ngongo (Megaphrynium macrostachyum) leaves to make a Mongolus, a hut made from sticks and leaves, South East Cameroon, July 2008.

Cyril Ruoso / Baka man squeezing honey into leaf, South East Cameroon, July 2008.

Cyril Ruoso / Two Baka men collecting honey from inside tree, South East Cameroon, July 2008.

Cyril Ruoso / Baka man holding leaf to collect honey squeezed from hand, South East Cameroon, July 2008.

Cyril Ruoso / Baka child swinging on rope, made from a single piece of bark, South East Cameroon, July 2008.

Cyril Ruoso / Baka people in hunting camp hut at night, South East Cameroon, July 2008.

Cyril Ruoso / Baka woman folding a very strong piece of freshly harvested bark, used as a rope, South East Cameroon, July 2008.

Cyril Ruoso / Baka woman making a Mongolu, a hut made from sticks and Ngongo (Megaphrynium macrostachyum) leaves, South East Cameroon, July 2008.

Cyril Ruoso / Baka Woman and child in Mongolu, a hut made from sticks and Ngongo (Megaphrynium macrostachyum) leaves, South East Cameroon, July 2008.

Cyril Ruoso / Baka boy with hunting spear, South East Cameroon, July 2008.

Cyril Ruoso / Baka man with three boys making plant fiber crowns for a night ceremony, South East Cameroon, July 2008.

Cyril Ruoso / Baka man packing venomous Gabon viper (Bitis gabonica) head, killed during hunt, in leaf, South East Cameroon, July 2008.

Cyril Ruoso / Baka man running during hunt, South East Cameroon, July 2008.

Cyril Ruoso / Gabon viper (Bitis gabonica) close up of skin, killed during hunt by Baka people, South East Cameroon, July 2008.

Cyril Ruoso / Peanuts (Arachis hypogaea) drying on the ground in Baka farm camp, the Baka lifestyle is becoming more sedentary with farming more common, South East Cameroon, July 2008.

Cyril Ruoso / Baka man portrait, South East Cameroon, July 2008.

Cyril Ruoso / Baka woman carrying large basket while travelling through the rainforest, South East Cameroon, July 2008.

Cyril Ruoso / Two Baka women using Ngongo (Megaphrynium macrostachyum) leaves to make a Mongolu, a hut made from sticks and leaves. With young children playing, South East Cameroon, July 2008.

Cyril Ruoso / Baka man carrying spear during hunt, South East Cameroon, July 2008.

Cyril Ruoso / Baka boy carrying Mongoose (Herpestes sp) killed during hunt, South East Cameroon, July 2008.

Cyril Ruoso / Baka boy holding up Mamba snake (Dendroaspis sp) and African brush tailed porcupine (Atherurus africanus) killed during hunt, South East Cameroon, July 2008.

Cyril Ruoso / Baka women using Ngongo (Megaphrynium macrostachyum) leaves to make huts know as Mongolus, in the rain, South East Cameroon, July 2008.

Cyril Ruoso / Close up of the tip of a spear handed down through generations of Baka people, Cameroon, South East Cameroon, July 2008.

Cyril Ruoso / Baka man with spear, which has been handed down from generation to generation, South East Cameroon, July 2008.

Cyril Ruoso / Baka child holding a Giant African land snail (Achatina sp) South East Cameroon, July 2008.

Cyril Ruoso / Wild honey and combs gathered by Baka men, Cameroon

Cyril Ruoso / Baka man hunting, Cameroon

Cyril Ruoso / Ngongo (Megaphrynium macrostachyum) leaves used by Baka woman to make a Mongolu, a hut made from sticks and leaves, Cameroon

Cyril Ruoso / Ngongo (Megaphrynium macrostachyum) leaves used by the Baka people to make a Mongolu, a hut made from sticks and leaves, Cameroon

Cyril Ruoso / Ngongo (Megaphrynium macrostachyum) leaf used by the Baka people to carry mushrooms back to camp, Cameroon

Cyril Ruoso / Ngongo (Megaphrynium macrostachyum) fibers used by Baka woman to make a basket, Cameroon

Cyril Ruoso / Baka children making toy crossbows, Cameroon

Cyril Ruoso / Baka soccer match with a ball made from leaves, Cameroon

Cyril Ruoso / Baka children making toy crossbows, Cameroon

Cyril Ruoso / Baka man making a soccer ball from leaves, Cameroon

Cyril Ruoso / Baka ceremony is performed before a hunting excursion, Cameroon

Cyril Ruoso / Baka ceremony is performed before a hunting excursion, Cameroon

Cyril Ruoso / Baka tribe member in farm camp with bananas, Cameroon

Cyril Ruoso / Baka woman carrying baby in large basket while traveling through the rainforest, Cameroon

Cyril Ruoso / Baka woman with large basket for traveling through the rainforest, Cameroon

Cyril Ruoso / Baka woman performing a dance by splashing the water after returning from gathering fruit, Cameroon

Cyril Ruoso / Baka boys making fiber crowns for a night ceremony, Cameroon

Cyril Ruoso / Baka boys making fiber crowns for a night ceremony, Cameroon

Cyril Ruoso / Baka boys in forest hunting camp at Mongolu shelter, Cameroon

Cyril Ruoso / Baka man in a forest hunting camp, Cameroon

Cyril Ruoso / Baka woman gathering fruit and nuts with her baby, Cameroon

Cyril Ruoso / Baka man and child in a Mongolu at a forest hunting campsite, Cameroon

Cyril Ruoso / Baka man taking shelter in a Mongolu at a forest hunting camp, Cameroon

Cyril Ruoso / Baka girl with crab caught by drilling the bank around the burrow, Cameroon

Cyril Ruoso / Baka woman using small dam in stream to catch fish, Cameroon

Cyril Ruoso / Dried nuts collected by Baka woman, Cameroon

Cyril Ruoso / Baka woman with honey collected by men, Cameroon

Cyril Ruoso / Baka child using a leaf to eat honey, Cameroon

Cyril Ruoso / Baka child eating honey, Cameroon

Cyril Ruoso / Baka men collecting honey, Cameroon

Cyril Ruoso / Ngongo (Megaphrynium macrostachyum) leaves used by Baka boy to build a Mongolu, a hut made from sticks and leaves, Cameroon

Cyril Ruoso / Baka child swinging on rope made from a single piece of bark, Cameroon

Cyril Ruoso / Ngongo (Megaphrynium macrostachyum) leaves used by the Baka people to make a Mongolu, a hut made from sticks and leaves, Cameroon

Karl Ammann / Ba'ka pygmy in Cameroon, West Africa being tested for Ebola virus after eating infected gorilla meat. Close genetic correlation between humans and apes means that many of the same viruses and parasite...

Karl Ammann / Ba'Aka pygmy child with empty plate, South East Cameroon. Once provided with extra meat for trade with their Bantu neighbours, today many of the pygmies' hunting grounds are empty - the result of incr...

Karl Ammann / Ba'Aka pygmy carrying the head of a gorilla killed for bushmeat, Central Africa.

Karl Ammann / Baka pybmies doing traditional Djenge dance, North East Gabon, Central Africa.

Cyril Ruoso / Ngongo (Megaphrynium macrostachyum) leaf used by the Baka people to carry food back from the forest, Cameroon

Cyril Ruoso / Ngongo (Megaphrynium macrostachyum) leaves used by the Baka people to make a Mongolu, a hut made from sticks and leaves, Cameroon

Cyril Ruoso / Baka women collecting the seeds of fruit, Cameroon

Cyril Ruoso / Ngongo (Megaphrynium macrostachyum) leaves used by the Baka people to make a Mongolu, a hut made from sticks and leaves, Cameroon

Cyril Ruoso / Baka people making Mongolus, a hut made from sticks and leaves, Cameroon

Cyril Ruoso / Baka tribe member looking for termite larva as food, Cameroon

Cyril Ruoso / Ngongo (Megaphrynium macrostachyum) leaves used by the Baka people to make a Mongolu, a hut made from sticks and leaves, Cameroon

Cyril Ruoso / Baka child swinging on liana, Cameroon

Cyril Ruoso / Baka child swinging on liana in the forest, Cameroon

Cyril Ruoso / Baka tribe hunting camp of Mongolu's, with tribe members, Cameroon

Cyril Ruoso / Baka tribe hunting camp with a tribe member holding a knife, Cameroon

Cyril Ruoso / Ngongo (Megaphrynium macrostachyum) leaves used by the Baka people to make Mongolus, a hut made from sticks and leaves, Cameroon

Cyril Ruoso / Ngongo (Megaphrynium macrostachyum) leaves used by Baka woman to make a Mongolu, a hut made from sticks and leaves, Cameroon

Cyril Ruoso / Ngongo (Megaphrynium macrostachyum) leaves used by the Baka people to make a Mongolu, a hut made from sticks and leaves, Cameroon

Cyril Ruoso / Ngongo (Megaphrynium macrostachyum) leaves used by Baka girl to make a Mongolu, a hut made from sticks and leaves, Cameroon

Cyril Ruoso / Baka woman carrying large basket while traveling through the rainforest, Cameroon

Cyril Ruoso / Ngongo (Megaphrynium macrostachyum) fabricated basket used to carry food, Cameroon

Cyril Ruoso / Baka man holding his identification that show that he is the oldest person in the community, Cameroon

Cyril Ruoso / Baka woman is the oldest in the community and still carries leaves to cover a hut, Cameroon

Cyril Ruoso / Baka boy making toy crossbow, Cameroon

Cyril Ruoso / Bricks in a Bantou village will be used by Baka workers to build a school for the villagers, Cameroon

Cyril Ruoso / Baka family in village, Cameroon

Cyril Ruoso / Baka woman with child, Cameroon