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| | Human Ancestors Hall: Homo ergaster |
 | | Traditionally, scientists have referred to this species as Homo erectus and linked this species name with a proliferation of populations across Africa, Europe, and Asia. |
 | | Yet, since the first discoveries of Homo erectus, it had been noted that there were differences between the early populations of "Homo erectus" in Africa, and the later populations of Europe, Africa and Asia. |
 | | erectus are thinner bones of the skull and the lack of an obvious sulcus, or depression, just behind the browridge. |
| www.mnh.si.edu /anthro/humanorigins/ha/erg.html (268 words) |
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