Zebrafish (IMAGE) MDI Biological Laboratory Caption The zebrafish, a common aquarium fish, is one of nature's champions of regeneration. Scientists Viravuth P. Yin, Ph.D., of the MDI Biological Laboratory and Benjamin L. King, Ph.D., of the University of Maine discovered genetic material in the cell that likely plays a part in regulating genetic circuits responsible for regeneration in highly regenerative animals by studying the early stages of heart regeneration in the zebrafish. Credit MDI Biological Laboratory Usage Restrictions None 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.