Ancient Skulls (IMAGE) University of Miami Caption More ancient skulls bearing evidence of trepanation -- a telltale hole surgically cut into the cranium -- have been found in Peru than the combined number found in the rest of the world. Credit University of Miami Usage Restrictions None License Licensed content 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.