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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). It follows the early expansions of hominins out of Africa, accomplished by Homo erectus and then ...
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]
The earliest known hominin presence outside of Africa dates to close to 2 million years ago. A 2018 study claims evidence for human presence at Shangchen, central China, as early as 2.12 Ma based on magnetostratigraphic dating of the lowest layer containing stone artefacts. [ 2 ]
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 ...
Stringer is 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 50,000 to ...
Early human migrations. Putative migration waves out of Africa and back migrations into the continent, as well as the locations of major ancient human remains and archeological sites (López et al., 2015). Early human migrations are the earliest migrations and expansions of archaic and modern humans across continents.
The published conclusion was that all current human mtDNA originated from a single population from Africa, at the time dated to between 140,000 and 200,000 years ago. [14] The dating for "Eve" was a blow to the multiregional hypothesis, which was debated at the time, and a boost to the theory of the recent origin model. [15]
DT433.54 .D56 1992. Out of Africa is a memoir by the Danish author Karen Blixen. The book, first published in 1937, recounts events of the seventeen years when Blixen made her home in Kenya, then called British East Africa. The book is a lyrical meditation on Blixen's life on her coffee plantation, as well as a tribute to some of the people who ...