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Africa is where humans originally come from. There’s much more human history in Africa than the rest of the world.
by skywhopper 1y ago
Africa is where humans originally come from. There’s much more human history in Africa than the rest of the world.
- djohnston 1y agoExistence, not history. History requires writing.
- layer8 1y agoThat’s a narrow definition of “history”. See for example https://en.wikipedia.org/wiki/History_of_Earth https://en.wikipedia.org/wiki/History_of_Earth.
- saltcured 1y agoThe above seems clear as genetic history written in the DNA. Those bottlenecks are a bit like burning the library at Alexandria.
- DougMerritt 1y ago...which needs more to explain it, such as (if true): "the diversity originating in Africa did not migrate out of Africa, and the gene lines that did leave Africa did not develop as much diversity as had existed in the ancestral gene pool, despite facing far more diversity in climate than exists in Africa". And then I would again ask of the latter, "what? Why not?" Ultimately: Why did Africa stimulate so much gene pool diversity? It seems more homogenous in environments than the rest of the world that Homo Sapiens emigrated to. And there would have been cross-breeding between African subpopulations. Environmental barriers in sub-Saharan Africa are minimal in terms of gene movement, aren't they?
- marssaxman 1y agoPerhaps there simply hasn't been time. Large scale migration out of Africa is a recent phenomenon relative to the existence of anatomically modern humans.