John P. Ray, University of Washington (IMAGE) University of Washington Caption John P. Ray, a research scientist at the University of Washington, looks at zebrafish under a microscope in a lab that studies genetic resistance to disease. Credit Leila Gray Usage Restrictions For use only by news media and education institutions 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.