Fig. 3
From: Crown-of-thorns starfish have true image forming vision
Behavioural results: black rectangle centred on a white square, presented on the mid-intensity grey background. a-e Starfish were either attracted to this stimulus or repelled, as seen by the axial nature of the directional responses. Animals responded to rectangles with an angular height of 5°, 32° and 43°. For more details on the circular plots see caption of Fig. 2. A summary of the circular statistics is given in Table 1