Jacob Daane and zebrafish (IMAGE) University of Houston Caption Jacob Daane will test genes in zebrafish to find out more information about extreme traits in fishes. Credit University of Houston Usage Restrictions Credit University of Houston License Original 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.