A new study suggests a significant behavioral shift occurred in early humans in Africa around 70,000 years ago. This change, the specifics of which remain under investigation, is theorized to be a key factor in the subsequent migration and global dispersal of these humans, ultimately leading to the population of the world as we know it today. Researchers are continuing to analyze archaeological and genetic evidence to better understand the nature of this transformative period and its lasting impact on human evolution and expansion.