Early humans living in Europe some 40,000 years ago developed a conventional system of geometric signs — deliberate, repeatable markings that went beyond decoration and hint at an early form of structured communication, according to a study published this week in the Proceedings of the National Academy of Sciences. Mobile artifacts with geometric signs from the Swabian Aurignacian. Image credit: Christian Bentz & Ewa Dutkiewicz, doi: 10.1073/pnas.2520385123. “At...
