Micro-CT scan of sea star (IMAGE) University of Southampton Caption Micro-CT scan of sea star showing the skeleton (grey), digestive system (yellow), nervous system (blue), muscles (red) and water vascular system (purple). Credit: University of Southampton Credit University of Southampton Usage Restrictions Must credit University of Southampton 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.