Scent Research (IMAGE) Ruhr-University Bochum Caption He has dedicated more than 20 years of his life to scent research: Hanns Hatt. Credit RUB, Marquard Usage Restrictions This image may only be used when reporting about the press release "Olfactory receptor discovered in pigment cells of the skin" (June 2, 2016). 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.