Image1 (IMAGE) Champalimaud Centre for the Unknown Caption Zebrafish hindbrain circuits active during eye rotations (red and blue neurons) and swimming (green neurons). Credit Claudia Feierstein (CCU) Usage Restrictions Attribute credit. License Original 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.