Coordinated movement helps avoid predation

Movement of animal groups varies between species, but has always been assumed to reduce predation risk. Here, virtual prey that swim in a coordinated, collective manner are less likely to be attacked by a predatory fish.
Predatory Fish Select for Coordinated Collective Motion in Virtual Prey, Ioannou CC et. al., Science, 7 Sep 2012, Vol. 337, no. 6099, pp.1212-1215