Dolphin and Container Ship (image) University of California - Santa Cruz Caption A dolphin is dwarfed by a massive container ship. Impacts of shipping on marine mammals include ship strikes, a particular concern for large whales. Credit Elliott Hazen, NOAA Southwest Fisheries Science Center 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.