Atlantic Killifish (image) University of California - Davis Share Print E-Mail Caption Atlantic killifish contributed key adaptive genetic variation to the Gulf killifish, which amounted to an evolutionary rescue from toxic pollutants. Credit Andrew Whitehead/UC Davis Usage Restrictions Provide 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.