Aran Islands Boulders (1 of 2) (image) University of Chicago Press Journals Caption This is the boulder ridge around the coastline of the Aran Islands. New research finds that storm waves have formed these ridges, despite the contention of some researchers that only a tsunami would have enough power to do this. Credit Ronadh Cox 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.