Burial Site (image) University of the Basque Country Caption One of the dolmens analysed, located in Elvillar (Araba). In the background, the Cantabria mountain ridge, where the caves included in the study are located. Credit Teresa Fernández-Crespo / UPV/EHU Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.