Gar (IMAGE) Michigan State University Caption In the current issue of Proceedings of the National Academy of Sciences, Michigan State University scientists show that gar, a toothy, freshwater fish, can reveal many evolutionary secrets -- even possible genetic blueprints for limb regeneration in people. Credit Courtesy of MSU 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.