"Modern Human Dispersals: The Evolution of Stone Tool Technology"
A study led by researchers at the Nagoya University Museum challenges traditional beliefs about the cultural evolution of Homo sapiens during their dispersal across Eurasia 50,000 to 40,000 years ago. The study suggests that the increase in stone tool productivity did not occur before or at the beginning of Homo sapiens' dispersals, but rather after, coinciding with the development of bladelet technology in the Early Upper Paleolithic. This challenges the view of a sudden cultural revolution and suggests a more nuanced and complex process of cultural evolution involving multiple stages.