Movement of Worms in an Electric Field (IMAGE) McMaster University Caption (a) The application of +8 V cm-1 electric field (E) caused an animal (724 µm long) to move with the speed of 308 µm s-1 to the right towards the cathode. (b) At a lower field strength in a reverse direction (-3 V cm-1) the animal (847.5 µm long) moved with a speed of 342 µm s-1 to the left towards the cathode. Dark thick arrows illustrate the worm's position. Scale bars are 1 mm. Credit McMaster University Usage Restrictions Please email genen@mcmaster.ca for permission to post. 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.