A dragonfly, loaded with retroreflective markers, catches a fly. Primates and other vertebrates use internal models to control and predict the consequences of their movements, but invertebrates were thought to rely mostly on reflexes. In a study using motion capture to track the head and body movements of dragonflies catching flying prey, Anthony Leonardo and colleagues demonstrate a complexity of behaviour not previously seen in an insect. Approaching from below, the dragonflys head locks onto its target while its body manoeuvres to align to the preys flight path and reduce the distance to the prey. Rather than generating these steering movements reactively, by responding only to changes in prey motion, dragonflies using both reactive and predictive control. These predictions account for the motion of the prey and the dragonflys own body, and are consistent with generation by internal models. The experimental accessibility of the insect nervous system, combined with the load-carrying capacity of the dragonfly, opens these general principles of motor control to detailed mechanistic dissection. Cover: Igor Siwanowicz & Huai-Ti Lin.