Scale Progression in Zebrafish (image) University of Virginia Share Print E-Mail Caption In this image of zebrafish scales, yellow marks the cells that produce bony material. Magenta marks the bony material. Credit Photo by Andrew Aman, David Parichy, University of Virginia, for the journal eLife. Usage Restrictions For news media. 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.