Speed Heals (IMAGE) University of Southern California Caption Axons (green) growing around one side of the developing spinal cord in the control (left) and in the experiment (right). In the experiment, by lowering the level of Limk1, the axons have now projected much further (yellow arrow) at the same stage in development. Credit Image courtesy of Samantha Butler. 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.