Why do animals actually hunt in groups when they have to share the prey afterwards? Researchers from the Cluster of Excellence Science of Intelligence (SCIoI), in which Humboldt-Universität zu Berlin (HU Berlin) and the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB) are involved, have shown in a field study in the ocean off Mexico that the faster the prey school moves, the higher the capture rate of the striped marlin.