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The ethnic groups of Africa number in the thousands, with each ethnicity generally having its own language (or dialect of a language) and culture. The ethnolinguistic groups include various Afroasiatic , Khoisan , Niger-Congo , and Nilo-Saharan populations.
The numbers shown correspond to the dates of all Iron Age artifacts associated with the Bantu expansion. Sub-Saharan Africa, Subsahara, or Non-Mediterranean Africa[ 3] is the area and regions of the continent of Africa that lie south of the Sahara. These include Central Africa, East Africa, Southern Africa, and West Africa.
There is a substantial contribution of Sub-Saharan African DNA in about a third of Moroccan people, with the most West Eurasian Berbers showing contributions of 1-10% Sub-Saharan African DNA on average. [29] Non Berber populations showed substantially more Sub-Saharan African DNA contributions (up to 55%).
Today 1.7 million people in the United States are descended from voluntary immigrants from sub-Saharan Africa, most of whom arrived in the late twentieth century. African immigrants represent 6 percent of all immigrants to the United States and almost 5 percent of the African-American community nationwide.
Sub-Saharan Africa is the region in Africa situated south of the Sahara where a large number of dark-skinned populations live. [105] [106] Dark-skinned groups on the continent have the same receptor protein as Homo ergaster and Homo erectus had. [107] According to scientific studies, populations in Africa also have the highest skin colour ...
Map of Africa and the African diaspora throughout the world. The genetic history of the African diaspora is composed of the overall genetic history of the African diaspora, within regions outside of Africa, such as North America, Central America, the Caribbean, South America, Europe, Asia, and Australia; this includes the genetic histories of African Americans, Afro-Canadians, Afro-Caribbeans ...
Data in the table below are based on genetic research. The second column designates linguistic affiliation of the sampled population (Semitic, Nilo-Saharan, Niger-Congo, etc.), the third column gives the total sample size studied, and the other columns indicate the percentage observed of particular haplogroups. I = 4.2%; R1a = 4.2%.
Some recent studies suggest that all humans outside of Sub-Saharan Africa have inherited some genes from Neanderthals, and that Melanesians are the only known modern humans whose prehistoric ancestors interbred with the Denisova hominin, sharing 4%–6% of their genome with this ancient cousin of the Neanderthal. [13]