For the last two decades, the prevailing view in human evolutionary genetics has been that Homo sapiens first appeared in Africa around 200,000 to 300,000 years ago, and descended from a single lineage. However, according to new research from the University of Cambridge, modern humans are a result of two populations (potentially Homo heidelbergensis and Homo erectus) that diverged 1.5 million years ago and came together in an admixture event 300,000...
