Sea Lion (IMAGE) NOAA Fisheries West Coast Region Caption Sea lions gather in spring at Bonneville Dam to prey on salmon, many of them endangered, as they enter the fish ladders at the dam. Credit US Army Corps of Engineers Usage Restrictions Credit: US Army Corps of Engineers 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.