MAURICIO ANTON / SCIENCE PHOTO LIBRARY MAURICIO ANTON / SCIENCE PHOTO LIBRARY
Homo ergaster. Artists impression of the skull, facial muscles and face of a Homo ergaster. H.ergaster is traditionally considered an early type of H. erectus by scientists. However, there are differences between the early populations of H. erectus in Africa and the later populations found in Europe, Africa and Asia. Many scientists now separate the two into distinct species; H. ergaster for early African 'Homo erectus' and H. erectus for later populations, mainly in Asia. Modern humans share the same differences as H. ergaster with the Asian H. erectus, so scientists consider H. ergaster to be the ancestor of later Homo populations.
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