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In paleoanthropology, the recent African origin of modern humans or the " Out of Africa " theory ( OOA) [a] is the most widely accepted [1] [2] [3] model of the geographic origin and early migration of anatomically modern humans ( Homo sapiens ).
As a result, a number of different theories have been provided to explain the spread of humanity. One of the most important theories in this area is the Out of Africa theory. This theory states that all humans originated from Africa and that we subsequently migrated out of the continent over time.
Out of Africa 1 contends that earlier Homo species did in fact migrate from Africa before the evolution of H. sapiens. Out of Africa 2 (also called the population replacement hypothesis) picks up where Out of Africa 1 leaves off. It posits that H. sapiens ….
It advances and empirically establishes the hypothesis that, in the course of the exodus of Homo sapiens out of Africa, variation in migratory distance from the cradle of humankind in East Africa to various settlements across the globe affected genetic diversity and has had a long-lasting hump-shaped effect on the pattern of comparative ...
- Quamrul Ashraf, Oded Galor
- 10.1257/aer.103.1.1
- 2013
- 2013/02
8 de may. de 2013 · The multiregional hypothesis states that independent multiple origins (Model D) or shared multiregional evolution with continuous gene flow between continental populations (Model C) occurred in the...
18 de jul. de 2007 · The new data support the single origin, or "out of Africa" theory for anatomically modern humans, which says that these early humans colonized the planet after spreading out of the continent...
The “Out of Africa” hypothesis is an evolutionary theory of modern human origin that posits that modern humans arose in the late Pleistocene, about 100,000–200,000 years ago, in Africa.
