Impressions of Wooden Neanderthal Tools Found in Spain

La Brújula Verde reports that 13 impressions left in travertine in northeastern Spain's Abric Romaní rock shelter have been identified as wooden tools made by Neanderthals who lived in the region between 40,000 and 62,000 years ago. According to Palmira Saladié, Gema Chacón, and Josep Vallverdú of the Catalan Institute of Human Paleoecology and Social Evolution, the impressions were made when the wooden objects were coated with water rich in calcium carbonate. The wood eventually decayed but left a hollow in the sediments. In all, the rock shelter contains about 66 feet of sediments laid down over thousands of years....