Superfish (IMAGE) American Physical Society Caption Time-averaged flow velocity surrounding the diamond-shaped school with a frequency of 0.833. Credit: Jackson Wray Credit Credit: Jackson Wray Usage Restrictions Credit: Jackson Wray 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.