A 1996 expedition resulted in conclusions that the ancient early human species, Homo erectus, coexisted for a time with modern humans in Indonesia. The most recent expedition suggests otherwise, challenging a widely held hypothesis of human evolution. Homo erectus, an ancient human ancestor that lived 1.8 million - 35,000 years ago, is said by theorists of human evolution to have lived alongside Homo sapiens (modern humans) in Indonesia, surviving most other Homo erectus populations that became extinct in Africa and most of Eurasia by 500,000 B.P. Perhaps not so, according to an international team of researchers, after conducting archaeological investigations...