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Fig. 4. Kinematic plots of jaw and head movements during the feeding strike in Sparisoma radians and Scarus quoyi. (A) Gape (cm), (B) gape angle (degrees), (C) jaw protrusion (cm), and (D) cranial elevation (degrees) vs time for Sparisoma radians (blue squares) and Scarus quoyi (green circles). Contact with food item occurs at t0, indicated by broken vertical lines.