<em>Myrmica rubra</em> (IMAGE) Johannes Gutenberg Universitaet Mainz Caption The cuticular hydrocarbons on the body surface of the ant Myrmica rubra form a complex mixture of solid and liquid components. Their composition influences the functions of the CHC layer -- as waterproofing agent and as a communication signal. Credit photo/©: Philipp Sprenger Usage Restrictions This image may only be used in connection with the press release "Melting properties determine biological functions of cuticular hydrocarbon layer of ants", issued by Johannes Gutenberg University Mainz on February 26, 2020. 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.