Imagine spotting someone across the room at a party , then heading over to speak to them. According to new research, your brain could be rehearsing those actions in your head before you actually start moving. The study involving zebrafish taps into what is a natural and essential behavior across the animal kingdom. From herds of sheep and schools of fish to late-night cocktail parties, deciding to approach others often takes some muster – weighing up if we should and how to do it, and what the