For decades, researchers walked past them without a second thought, isolated teeth, piled in ancient caves across France and Spain, assumed to be nothing more than the leftovers of a prehistoric meal. But when scientists finally looked closer, the markings told a completely different story. What they found suggested a level of deliberate, calculated behavior that no one had expected from a species long dismissed as primitive A study published in the May 2026 issue of the Journal of Human Evolution has found evidence that Neanderthals used rhinoceros teeth as tools to shape stone and process organic materials. The research, led by Alicia Sanz-Royo of the University of Abe... [3489 chars]