Humans evolved in partially isolated populations scattered across Africa (https://phys.org/news/2018-07-humans-evolved-partially-isolated-populations.html)
(https://3c1703fe8d.site.internapcdn.net/newman/csz/news/800/2018/1-ourfractured.jpg)
Quote...While it is widely accepted that our species originated in Africa, less attention has been paid to how we evolved within the continent. Many had assumed that early human ancestors originated as a single, relatively large ancestral population, and exchanged genes and technologies like stone tools in a more or less random fashion...