Live adult zebrafish (image) Keck School of Medicine of USC Share Print E-Mail Caption A live adult zebrafish showing showing Pou3f3 gene activity (green) in the gill cover, jaw support skeleton, and eye. Bone-forming cells are labeled in magenta. Credit Peter Fabian, USC Stem Cell Usage Restrictions None 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.