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Wikipedia:Reference desk/Science: Difference between revisions - Wikipedia

Wikipedia:Reference desk/Science: Difference between revisions

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:Briefly, when the only (known) now-surviving human subspecies ''[[Homo sapiens sapiens]]'' first spread beyond Africa (though many stayed there), there were likely still some closely related sub-species in Africa such as ''[[Homo sapiens idaltu]]'', perhaps also some of the last ''[[Homo antecessor]]'' and/or ''[[Homo heidelbergensis]]'' whose earlier emigrants to Europe had evolved into Neanderthals, and possibly some surviving ''[[Homo ergaster]]'' (aka "African ''erectus''") from whom ''H sapiens'' had evolved (also via ''H antecessor'' and ''heidelbergensis''), and ''[[Homo rhodesiensis]]''.
:(Remember, when one species evolves "from" another, it often does so in one particular locality because of special conditions there, leaving populations of the first species still continuing to live elsewhere, from whom further species may subsequently evolve - there is not necessarily a strict line of succession and immediate replacement.)
:Beyond Africa there were already: the species/subspecies ''[[Homo neanderthalensis]]/Homo sapiens neanderthalensis'' in the Levant and Europe (with whom ''H sapiens sapiens'' then interbred); ''[[Homo denisovan]]'' (or ''H sapiens denisovan''?) in parts of Eurasia, (with whom some ''H sapiens sapiens'' also interbred); ''[[Homo erectus]]'' (divided into several localised sub-species) throughout Eurasia, Indonesia and possibly parts of Australasia (with whom ''H s s'' probably did ''not'' interbreed, but- though see ''[[Homo erectus soloensis]]'' - and whom we replaced), and ''[[Homo floresiensis]]'' (perhaps a descendant from ''erectus'', perhaps from an ''[[Australopithecus]]'' species, perhaps something else - the jury is still out) in Flores and perhaps elsewhere.
:There may well have been other localised ''Homo'' species and subspecies that we have not yet discovered. Several of the above-mentioned varieties of humans are known only from very few fossils, so future finds may well extend their currently confirmed time spans nearer to the present day. {The poster formerly known as 87.81.230.195} [[Special:Contributions/90.197.66.165|90.197.66.165]] ([[User talk:90.197.66.165|talk]]) 01:24, 20 March 2011 (UTC)