Stickleback (IMAGE) Max-Planck-Gesellschaft Caption Sticklebacks show the same polymorphism of immune genes as humans and thus make excellent research models. Credit Milinski/MPI for Evolutionary Biology 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.