Excavations of Neanderthal sites more than 40,000 years old have uncovered a kind of tool that leather workers still use to make hides more lustrous and water resistant. The bone tools, known as lissoirs, had previously been associated only with modern humans. The latest finds indicate that Neanderthals and modern humans might have invented the tools independently.
The first of the lissoir fragments surfaced a decade ago at a rock shelter called Pech-de-l'Azé in the Dordogne region of southwest France. Archaeologist Marie Soressi of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, knew the tool at once, says her colleague Shannon McPherron.