Overlaid Waveforms (image) University of Cambridge Caption The background is the instantaneous fluid velocity field of one flagellum, color-coded by magnitude, with overlaid arrows showing flow direction. Credit Image courtesy of D.R. Brumley, K.Y. Wan, M. Polin, and R.E. Goldstein, University of Cambridge. Usage Restrictions Please credit. 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.