https://phys.org/news/2018-06-fish-stage-fright.html > When shooting, archerfish need to 'aim', lining up their body with and focusing on their target, but sometimes they will aim without shooting. On those occasions the fish will reposition before aiming again and making a shot from a different position or angle. > The research, led by scientists from the Centre for Social Learning and Cognitive Evolution at St Andrews, in collaboration with Bayreuth University, Germany, found that when archerfish are observed by fish in a neighbouring tank, the shooting fish more frequently aim and reposition before making a shot. This change in behaviour may be a tactic to reduce competition from other archerfish.