Not just skin deep -- CT study of early humans reveals evolutionary relationships

CT scans of fossil skull fragments may help researchers settle a long-standing debate about the evolution of Africa's Australopithecus, a key ancestor of modern humans that died out some 1.4 million years ago. The study, to be published in the Proceedings of the National Academy of Sciences, explains how CT scans shed new light on a classic evolutionary puzzle by providing crucial information about the internal anatomy of the face.

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