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Throwing performance in the genus has previously been linked to several anatomical shifts in the upper body during the evolution of Homo.
Its earliest fossil evidence dates to 1.8 million years ago (discovered 1991 in Dmanisi, Georgia). ergaster to be a variety, that is, the "African" variety, of H.
erectus; the labels "Homo erectus sensu stricto" (strict sense) for the Asian species and "Homo erectus sensu lato" (broad sense) have been offered for the greater species comprising both Asian and African populations. erectus eventually became extinct throughout its range in Africa, Europe and Asia, but developed into derived species, notably Homo heidelbergensis. The discovery of the morphologically divergent Dmanisi skull 5 in 2013 has reinforced the trend of subsuming fossils formerly given separate species names under H. habilis (alternatively suggested as late forms of Australopithecus rather than early Homo) should be considered early varieties of H. The Dutch anatomist Eugène Dubois, inspired by Darwin's theory of evolution as it applied to humanity, set out in 1886 for Asia (despite Darwin's theory of African origin) to find a human ancestor.
Different fossils and skeletal measures used in reconstructing the Homo erectus shoulder make it possible for either an anteriorly facing shoulder configuration or a lateral orientation that is similar to modern humans.
These two different orient the throwing ability and hunting behavior of early Homo species.