Antibiotic resistance is one of the most urgent threats to global health nowadays. In order to find a solution to this growing problem, scientists are searching for new bacteria-killing drugs in all kinds of environments. Recently, researchers have started looking at the layer of mucus that coats the outer surface of young fish. While the mucus itself helps protect fish from harmful bacteria and viruses, academics are more interested in the microbiome it’s home to and the substances it produces. After looking into the different strains of bacteria found in the slime, researchers discovered that some of them proved to be effective in tackling common types of infections like E. coli.