Female Zebrafish, <i>Danio rerio</i> (IMAGE) University of Exeter Caption Zebrafish are native to the Indian sub-continent but are used globally as a model in environmental research, developmental biology and medical research. Credit Kelvin Boot 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.