The zebrafish serves as a model organism for researchers around the world: it can be used to study important physiological processes that also take place in a similar form in the human body. It is therefore routinely used in the search for possible active substances against diseases. Researchers at the University of Bonn have now described an innovative way to do this. In this process, the larvae fish are made a bit more „human-like“. This humanization could make the search for active pharmaceutical substances much more efficient. The results of the pilot study have been published in the journal Cell Chemical Biology.