Zebrafish Nerves (IMAGE) University of Pennsylvania School of Medicine Caption This is a picture of back (green) and abdominal (magenta) peripheral nerve axons in zebrafish. Credit Michael Granato, PhD, Lab, Perelman School of Medicine, University of Pennsylvania 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.