In the Red Sea, a tiny fish has been cornered by a group of hunters working as a team. One of them chased it into a coral crevice, while the others circled around to block off any exists. With no escape, the predators – a group of yellow saddle goatfish – close in on their prey.

The goatfish are one of the few examples of fish that hunt in groups, and their strategy has just been described by Carine Strubin, Marc Steinegger and Redouan Bshary from the University of Neuchatel. Bshary has spent over a decade in the Red Sea, studying the local fish. “I spent a long time working on cleaner wrasses,” he says. “During that time, one