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Microscopic analysis of backed lithic pieces from the Uluzzian technocomplex (45-40kya) at the Grotta del Cavallo (southern Italy) reveals their use as mechanically delivered projectile weapons, attributed to Anatomically Modern Humans. Use-wear and residue analysis indicates the lithics were hunting armatures hafted with complex adhesives, while experimental and ethnographic comparison supports their use as projectiles. The use of projectiles conferred a hunting strategy with a higher impact energy and a potential subsistence advantage over other populations and species. Users may view, print, copy, and download text and data-mine the content in such documents, for the purposes of academic research, subject always to the full Conditions of use: