CONGO PYGMIES
Congo Pygmies live in several ethnic groups in Rwanda, Burundi, Uganda, the Democratic Republic of the Congo, the Central African Republic, Cameroon, Equatorial Guinea, Gabon, the Republic of Congo, Angola, Botswana, Namibia, and Zambia.
Most Pygmy communities are partially hunter-gatherers, living partially but not exclusively on the wild products of their environment. They trade with neighboring farmers to acquire cultivated foods and other material items; no group lives deep in the forest without access to agricultural products.
It is estimated that there are between 250,000 and 600,000 Pygmies living in the Congo rainforest. However, although Pygmies are thought of as forest people, the groups called Twa may live in open swamp or desert.
The term “pygmy” is sometimes considered pejorative. However, there is no single term to replace it. Many so-called pygmies prefer instead to be referred to by the name of their various ethnic groups, or names for various interrelated groups such as the Aka (Mbenga), Baka, Mbuti, and Twa. The term Bayaka, the plural form of the Aka/Yaka, is sometimes used in the Central African Republic to refer to all local Pygmies. Likewise, the Kongo word Bambenga is used in Congo.
Ancestral relationship with other Africans
A commonly held belief is that African Pygmies are the direct descendants of the Late Stone Age hunter-gatherer peoples of the central African rainforest, who were partially absorbed or displaced by later immigration of agricultural peoples, and adopted their Central Sudanic, Ubangian, and Bantu languages. This view has no archaeological support, and ambiguous support from genetics and linguistics.
Some 30% of the Aka language is not Bantu, and a similar percentage of the Baka language is not Ubangian. Much of this vocabulary is botanical, deals with honey collecting, or is otherwise specialized for the forest and is shared between the two western Pygmy groups. It has been proposed that this is the remnant of an independent western Pygmy (Mbenga or “Baaka”) language. However, this type of vocabulary is subject to widespread borrowing among the Pygmies and neighboring peoples, and the “Baaka” language is only reconstructed to the 15th century.
Genetic evidence for origins
Genetically, the pygmies are extremely divergent from all other human populations, suggesting they have an ancient indigenous lineage. Their uniparental markers represent the most ancient divergent ones right after those typically found in Khoisan peoples. African pygmy populations possess high levels of genetic diversity; recent advances in genetics shed some light on the origins of the various pygmy groups.
The transition from hunting and gathering to farming involved a major cultural innovation that has spread rapidly over most of the globe in the last ten millennia. In sub-Saharan Africa, hunter–gatherers have begun to shift toward an agriculture-based lifestyle over the last 5,000 years. Only a few populations still base their mode of subsistence on hunting and gathering. The Pygmies are considered to be the largest group of mobile hunter gatherers of Africa. They dwell in equatorial rainforests and are characterized by their short mean stature. However, little is known about the chronology of the demographic events size changes, population splits, and gene flow ultimately giving rise to contemporary Pygmy (Western and Eastern) groups and neighboring agricultural populations.
Various theories have been proposed to explain the short stature of pygmies. Evidence of heritability has been established which may have evolved as an adaptation to low ultraviolet light levels in rainforests. This might mean that relatively little vitamin D can be made in human skin, thereby limiting calcium uptake from the diet for bone growth and maintenance, and leading to the evolution of the small skeletal size characteristic of pygmies.
Other explanations include lack of food in the rainforest environment, low calcium levels in the soil, the need to move through dense jungle, adaptation to heat and humidity, and most recently, as an association with rapid reproductive maturation under conditions of early mortality. Other evidence points towards unusually low levels of expression of the genes encoding the human growth hormone and its receptor relative to the related tribal groups, associated with low serum levels of insulin-like growth factor-1 and short stature.
The short stature of Pygmy groups around the world has long intrigued anthropologists. It is generally accepted that their small body size is a result of genetic adaptation; however, which genes were selected, and the nature of the underlying selective force, remain unknown. The various hypotheses proposed include adaptations to food limitation, thermoregulation, mobility in the forest, and/or short lifespan.
The African Pygmies are particularly known for their usually vocal music, usually characterized by dense contrapuntal communal improvisation. The level of polyphonic complexity of Pygmy music was reached in Europe in the 14th century, yet Pygmy culture is unwritten and ancient, some Pygmy groups being the first known cultures in some areas of Africa. Music permeates daily life and there are songs for entertainment as well as specific events and activities.
Original Pygmy language
An original Pygmy language has been postulated for at least some Pygmy group. They speak languages belonging to either to the Nilo-Saharan or Niger–Kordofanian families. It is assumed that Pygmies once spoke their own language(s), but that, through living in symbiosis with other Africans, in prehistorical times, they adopted languages belonging to these two families.”
However, the only evidence that such languages existed is Mbenga forest vocabulary common to the neighboring Ubangian-speaking Baka and the Bantu-speaking Aka (there is no such common Mbuti vocabulary); if this does represent a common ancestral language rather than borrowing, the speakers may well not have been specifically Pygmies, but instead another of the several potential language isolates of (former) hunter-gatherer populations that ring the rainforest.
A commonly held belief is that African Pygmies are the direct descendants of the Late Stone Age hunter-gatherer peoples of the central African rainforest, who were partially absorbed or displaced by later immigration of agricultural peoples, and adopted their Central Sudanic, Ubangian, and Bantu languages. This view has no archaeological support, and ambiguous support from genetics and linguistics.
Some 30% of the Aka language is not Bantu, and a similar percentage of the Baka language is not Ubangian. Much of this vocabulary is botanical, deals with honey collecting, or is otherwise specialized for the forest and is shared between the two western Pygmy groups. It has been proposed that this is the remnant of an independent western Pygmy (Mbenga or “Baaka”) language. However, this type of vocabulary is subject to widespread borrowing among the Pygmies and neighboring peoples, and the “Baaka” language is only reconstructed to the 15th century.