Narwhals and Sea Ice (IMAGE) University of California - Santa Cruz Caption Narwhals live year-round in Arctic waters, where sea ice has helped isolate them from people. But Arctic sea ice is melting, allowing increased ship traffic, oil exploration, and other human activities. Credit Mads Peter Heide-Jorgensen Usage Restrictions For use only with news coverage of this research 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.