Knowra Recent African origin of modern humans Recent African origin of modern humans The model that Homo sapiens evolved in Africa and dispersed worldwide, largely replacing earlier human populations while interbreeding with some, including Neanderthals and Denisovans.
Homo sapiens : The living human species, distinguished by distinctive anatomy and a capacity for complex symbolic culture. The model explains the species’ African emergence and subsequent global spread.
African Middle Stone Age : The African archaeological period, roughly spanning 300,000 to 30,000 years ago, marked by diverse stone technologies and symbolic artifacts. Its archaeological record provides context for behavioral and technological change during early Homo sapiens history.
Human evolution : The evolutionary history of humans and their ancestral relatives, reconstructed from fossils, genetics, and archaeology. Recent African origin is a model within this broader evolutionary history.
Human genetic diversity : The variation in genetic material among human individuals and populations. Its distribution, especially greater diversity within Africa, is central evidence for African origins.
Pan-African origin of Homo sapiens : The hypothesis that Homo sapiens emerged through interconnected populations across multiple African regions rather than at one localized origin. It refines the model by questioning whether a single African birthplace is adequate.
Out of Africa dispersal : The movement of Homo sapiens out of Africa into other continents, especially during the late Pleistocene. This migration carried African populations across the world and underlies the model’s replacement claim.
Jebel Irhoud : A Moroccan archaeological site with fossils attributed to early Homo sapiens, dated to about 300,000 years ago. Its fossils pushed the known antiquity of Homo sapiens and broadened its documented African range.
Hominin : A member of the evolutionary group that includes modern humans and extinct species more closely related to humans than chimpanzees. The model concerns one branch within the wider hominin lineage.
Serial founder effect : The progressive loss of genetic diversity as populations are founded by smaller groups moving away from an origin population. It explains declining genetic diversity with distance from Africa during successive dispersals.
Human origins in Africa : The study of where and how human lineages, including Homo sapiens, evolved across Africa. Fossil and genetic discoveries continue to alter the geography and timing of the model.
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