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The hypothesis necessarily rejects the assumption of an infertility barrier between ancient Eurasian and African populations of Homo. The hypothesis was controversially debated during the late 1980s and the 1990s. [119] The now-current terminology of "recent-origin" and "Out of Africa" became current in the context of this debate in the 1990s ...
The Real Eve: Modern Man's Journey Out of Africa is a popular science book about the evolution of modern humans written by British geneticist Stephen Oppenheimer. The book is largely based on the "out of Africa" theory of human origins. Oppenheimer uses information from various disciplines including genetics, archaeology, anthropology and ...
The Journey of Man: A Genetic Odyssey is a 2002 book by Spencer Wells, an American geneticist and anthropologist, in which he uses techniques and theories of genetics and evolutionary biology to trace the geographical dispersal of early human migrations out of Africa. The book was made into a TV documentary in 2003.
Stringer was previously one of the leading proponents of the recent African origin hypothesis or ″Out of Africa″ theory, which hypothesizes that modern humans originated in Africa over 100,000 years ago and replaced, in some way, the world's archaic humans, such as Homo floresiensis and Neanderthals, after migrating within and then out of Africa to the non-African world within the last ...
Rebecca L. Cann (born 1951) is a geneticist who made a scientific breakthrough on mitochondrial DNA variation and evolution in humans, popularly called Mitochondrial Eve.Her discovery that all living humans are genetically descended from a single African mother who lived <200,000 years ago became the foundation of the Out of Africa theory, the most widely accepted explanation of the origin of ...
The finding that "Mitochondrial Eve" was relatively recent and African seemed to give the upper hand to the proponents of the Out of Africa hypothesis.But in 2002, Alan Templeton published a genetic analysis involving other loci in the genome as well, and this showed that some variants that are present in modern populations existed already in Asia hundreds of thousands of years ago. [31]
Relethford's research focuses on human population genetics and the evolutionary origin of modern humans. [1] For example, he has proposed his own version of the "Out of Africa" model, the standard theory for the evolution of modern humans; he has described his model as placing human origins "mostly out of Africa".
The dominant Out of Africa theory holds that modern humans developed east of the Great Rift Valley of the African continent at one time or another. The Sahara kept people from migrating north to the Fertile Crescent, until later when the Nile River valley became accommodating. Diamond continues to describe the story of human development up to ...