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Modern Human Brain Originated in Africa Around 1 7 Million Years Ago

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)

Magnetar mysteries, and when humans got big brains

ESO/J. Emerson/VISTA; Cambridge Astronomical Survey Unit Host Sarah Crespi talks with Contributing Correspondent Joshua Sokol about magnetars highly magnetized neutron stars. A recent intense outburst of gamma rays from a nearby galaxy has given astronomers a whole new view on these mysterious magnetic monsters. Also on this week’s show, Christoph Zollikofer, a professor of anthropology at the University of Zurich, talks about the evolution of humanlike brains. His team’s work with brain-case fossils suggests the complex brains we carry around today were not present in the early hominins to leave Africa, but later developed in the cousins they left behind.

Le cerveau humain actuel est apparu il y a 1,7 million d années selon une étude suisse

Le cerveau humain actuel est apparu il y a 1,7 million d années selon une étude suisse
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