Lamprey Swimming in Tank (video) Marine Biological Laboratory Share Print E-Mail Loading video... Caption Lampreys swimming in a tank at the Marine Biological Laboratory, Woods Hole. MBL scientist Jennifer Morgan and colleagues use lamprey as a model system to study spinal cord regeneration. These lampreys are four to five years old and are still considered to be in the larval stage. Credit Amanda R. Martinez Usage Restrictions Please use with proper credit Share Print E-Mail 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.