Shell Midden (IMAGE) Proceedings of the National Academy of Sciences Caption This is a shell midden on Navarino Island overlooking the Beagle Channel. Credit Ismael Mart�nez Rivera (Instituto de la Patagonia, Punta Arenas, Chile). 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.