HKBU Study (IMAGE) Hong Kong Baptist University Caption Dr Kelvin Leung says that owing to the high similarity of the genetic structure of zebrafish and that of humans, the contamination of seawater caused by sunscreen chemicals poses a possible risk to human health via the food chain. Credit HKBU 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.