A surprising shift in human origins research.

Modern genetics has opened windows into the past that earlier scientists could only guess at. Now researchers are gathering evidence that our species may come from two ancient populations rather than a single source, and both groups almost certainly had dark skin due to the intense sunlight in early African environments.
This fits into the larger story because it reflects how early humans adapted to their surroundings long before expanding across the world. Instead of imagining one uniform population slowly spreading outward, scientists now see two groups separating, changing over long periods and eventually merging to form all of us.



