Team at Rockshelter (IMAGE) University of Utah Caption A team of researchers at the mouth of Abrigo de los Escorpiones that contains a 26-feet-(8-meter-)-deep deposit of discarded shells, animal bones and archaeological artifacts, with 97 radiocarbon dates that reveal a 12,000-year chronological history of human and raptor deposition. Credit Isaac Hart Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. Adaptations must be shared under the same terms. License CC BY-NC-SA 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.