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In paleoanthropology, the recent African origin of modern humans or the "Out of Africa" theory (OOA) is the most widely accepted model of the geographic origin and early migration of anatomically modern humans (Homo sapiens). It follows the early expansions of hominins out of Africa, accomplished by Homo erectus and then Homo ...
The Out of Africa theory is the most widely accepted explanation for the origins of modern humans. The theory states that all humans originated in Africa and that we subsequently migrated out of the continent over time. This theory is supported by a variety of evidence, including genetic studies, fossil records, and archaeological finds.
- Development of The Hypothesis
- The Genetic Foundations
- Alternatives: The Role of Africa
- Racial Implications
- Status of The Out of Africa Hypothesis
- Bibliography
- GeneratedCaptionsTabForHeroSec
The Out of Africa hypothesis is sometimes dubbed “Out of Africa 2” because it is not the first migration of Homo out of Africa. It is well accepted that the hominid lineage (the unique human lineage since divergence from the last common ancestor with chimpanzees) evolved in Africa, and for two-thirds of its 6-million-year history was an exclusively...
The Out of Africa hypothesis, the theory of a recent uniqueAfrican origin for the modern human species, was supported by early interpretations of the variation of mtDNA (Cann, Stoneking, and Wilson 1987; Stoneking and Cann 1989). Advances in gene sequencing technology in the 1980s provided the techniques to sequence the mitochondrial genome, and Re...
Much of the current genetic evidence is incompatible with the Out of Africa scenario because it does not reflect a bottleneck associated with recent speciation. While there are a number of nuclear loci that do fit the hypothesis (i.e., autosomal loci with roots four times as deep as the mtDNA and loci on the nonrecombining Y), the rate of discovery...
Race is intricately involved in human origin theories because these theories address the origin and nature of human biological variation. For many historical reasons, and perhaps some psychological ones, race impacts our understanding of human variation in a circular way: Folk (or social) understandings of variation (race) influence science, and co...
This entry has explored the relationship between the concept of race and evolutionary theories of the origin of modern humans, in particular the Out of Africa hypothesis. It is ironic that the Out of Africa theory, while recently promoted as proof of the “brotherhood of man,” inadvertently undermines this important concept because the assumptions t...
Brace, C. L. 1981. “Tales of the Phylogenetic Woods: The Evolution and Significance of Evolutionary Trees.” American Journal of Physical Anthropology56 (4): 411–429. Bräuer, G. 1978. “The Morphological Differentiation of Anatomically Modern Man in Africa, with Special Regard to Recent Finds from East Africa.” Zeitschrift für Morphologie und Anthrop...
Learn about the evolutionary theory of modern human origin that posits that modern humans arose in Africa and replaced other archaic humans. Explore the development, genetic foundations, alternatives, and racial implications of the Out of Africa Hypothesis.
18 de jul. de 2007 · A study combining genetic and skull data supports the single origin of modern humans in Africa. It finds no evidence of interbreeding with Neandertals or other human groups outside Africa.
Learn about the two main theories on the origin of modern humans: the Out-of-Africa hypothesis and the multiregional hypothesis. Compare their models, evidence and implications for human evolution and diversity.
8 de ago. de 2007 · Is the Out of Africa Theory Out? An examination of over 5,000 teeth from early human ancestors shows that many of the first Europeans probably came from Asia. By Nikhil Swaminathan....
23 de set. de 2019 · The recent and simple out-of-Africa (SOA) model proposed an expansion out of Africa in the past 100,000 yr from a single region in Africa. Testing these models has undoubtedly improved our...
