Lamprey Swimming (1 of 2) (IMAGE) University of South Florida Caption Snapshot of a lamprey (black outline) swimming in a water tank. Colors indicate low-pressure suction forces (blue) and high-pressure pushing forces (red) generated by the animal as it swims. Black lines and arrows indicate water flow directions around the animal. Credit Credit: John O. Dabiri Usage Restrictions None 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.