Sign up for Big Think on Substack The most surprising and impactful new stories delivered to your inbox every week, for free. “Two souls, alas, dwell in my breast.” Like Goethe’s Doctor Faust, we all have an inner duality. Recent discoveries about the deep past of human evolution reveal that for more than a million years, humanity was divided into …
Read More »Evolution isn’t a straight line: Modern humans come from 2 ancient lineages
