This paper presents results from a number of experiments within the area of competitive co-evolutionary robotics. The focus in these experiments has been on ‘co-evolving’ parts of the morphology of predator and prey robots together with their neural control system. More specifically, the results presented here focus on the evolution of the vision modules’ view angle, view range and camera direction. The results have been analyzed with respect to how the evolutionary process is capable of co-adapting morphological parameters and behavioral strategies, so that task-dependent visual morphologies are evolved.