How Flies Taste Salt (IMAGE) Johns Hopkins Medicine Caption An illustration shows how flies taste salt via channels made up of the protein IR76b, which let sodium ions into the cells that sense taste. Credit Tim Phelps/Johns Hopkins University School of Medicine Usage Restrictions Credit must be given to Tim Phelps/Johns Hopkins University School of Medicine 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.