Photo de stock - 29 November 2023, Rhineland-Palatinate, Mainz: Paleontologist Ivan Calandra from the Leibniz Center for Archaeology (Leiza) looks at the X-ray scan of a rock sample on the computer. An international team of researchers is using a 3D computer tomograph in Mainz, the only one of its kind in Europe, to examine 1.6 million-year-old percussion tools. Photo: Ira Schaible/dpa. - Mainz/Rhineland-Palatinate/Germany

Photo de stock: 29 November 2023, Rhineland-Palatinate, Mainz: Paleontologist Ivan Calandra from the Leibniz Center for Archaeology (Leiza) looks at the X-ray scan of a rock.

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