Researchers at canyon site (IMAGE) Syracuse University Caption Gregory Hoke (left) and Nicolas Pérez-Consuegra making observations about an outcrop of rocks in the tropical Andes. Credit Syracuse University Usage Restrictions None License Original 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.