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Modern Human Brain Originated in Africa around 1.7 Million Years Ago Modern humans are fundamentally different from our closest living relatives, the great apes: We live on the ground, walk on two legs and have much larger brains. The first populations of the genus Homo emerged in Africa about 2.5 million years ago. They already walked upright, but their brains were only about half the size of today s humans. These earliest Homo populations in Africa had primitive ape-like brains - just like their extinct ancestors, the australopithecines. So when and where did the typical human brain evolve?
CT comparisons of skulls reveal modern brain structures
Date Time
Modern Human Brain Originated in Africa Around 1.7 Million Years Ago
The human brain as we know it today is relatively young. It evolved about 1.7 million years ago when the culture of stone tools in Africa became increasingly complex. A short time later, the new Homo populations spread to Southeast Asia, researchers from the University of Zurich have now shown using computed tomography analyses of fossilized skulls.
Schädel des frühen Homo aus Georgien mit einem affenähnlichen (links) und aus Indonesien mit einem menschenähnlichen Gehirn (rechts). (Bild: M. Ponce de León und Ch. Zollikofer, UZH)
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