Map Out Of Africa Hypothesis
5 using archeological data combined with mitochondrial and.
Map out of africa hypothesis. Most people today have heard of the out of africa theory for human evolution. Erectus arrived in the various regions in the world hundreds of thousands of years ago they slowly evolved into modern humans homo. Colored rings indicate thousand years before present. It argues that every living human being is descended from a small group of homo sapiens abbreviated hss individuals in africa who then dispersed into the wider world meeting and displacing earlier forms such as neanderthals and denisovans.
The out of africa theory is the generally accepted theory that modern humans migrated and expanded out of africa hundreds of thousands of years ago. Map of human migration. Early major proponents of this theory were led by british paleontologist chris stringer in direct opposition to scholars supporting the multiregional hypothesis. 7 11 15 under this model these hominins were driven to extinction so that most of the genetic diversity in contemporary populations descends from a single or multiple groups of amh who spread out of africa sometime in the last 55 200 kya although.
It s counterpart multi regional hypothesis far less talked about while the out of africa theory is most accepted evidence is still arising that could eventually see a new theory of evolution take place. Drag map to change view. In paleoanthropology the recent african origin of modern humans also called the out of africa theory ooa recent single origin hypothesis rsoh replacement hypothesis or recent african origin model rao is the dominant model of the geographic origin and early migration of anatomically modern humans homo sapiens. By mapping the appearance and frequency of genetic markers in modern peoples we create a picture of when and where ancient humans moved around the world.
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. According to this well established hypothesis the human species having evolved to its modern form in east africa some 150 000 years ago thereafter embarked on populating the entire globe in a stepwise migration process beginning about 70 000 90 000 bp. Click on each route to view more information. It was b ack i n the 19th century when charles darwin suggest ed that our.
Today we are most familiar with the out of africa theory for modern humans. Genographic project map of human migration. The replacement or out of africa ooa model proposes a single and relatively recent transition from archaic hominins to amh in africa followed by a later migration to the rest of the world replacing other extant hominin populations. Several expansions of populations of archaic humans genus homo out of africa and throughout eurasia took place in the course of the lower paleolithic and into the beginning middle paleolithic between about 2 1 million and 0 2 million years ago ma these expansions are collectively known as out of africa i in contrast to the expansion of homo sapiens anatomically modern humans into eurasia which may have begun shortly after 0 2 million years ago known in this context as out of.
The out of africa ooa or african replacement hypothesis is a well supported theory. These waves of migration steadily occurred over the world and eventually became the human civilization. It follows the early expansions of. When humans first ventured out of africa some 60 000 years ago they left genetic footprints still visible today.
Human evolution has puzzled scientists fo r centuries. Map of the migration of modern humans out of africa based on mitochondrial dna.
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