Traditional explanations attribute Pygmies small stature to minimizing caloric requirements and walking dense forest.
1.Bamtuti also called Mbuti, a group of pygmies of Ituri Forest of eastern Congo (Kinshaso).
They are the shortest group of pygmies in Africa, averaging under 4 feet 6 inches(137cm) in height and are perhaps the most famous
2.The Aka or Bayaka, (also BiAka,Babenzele) are a nomadic Mbenga pygmy people.
They live in southwestern African Republic and northern Republic of Congo. They are related to baka people of Cameroon,Gabon,northern Congo and southwestern Central Africa Republic.
The Aka collect roots and leaves,nuts and fruit. They collect mushrooms ,termites,crickets,grubs,and caterpillars