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Fig. 3. Landmarks digitized in each mirror ventral view of fish. Kinematic
variables calculated included jaw protrusion (1), angles of the pectoral (2)
and pelvic fins (3) relative to the body, and angles of the median (4) and
caudal fins (5) relative to the overall trajectory of the fish (x
axis). Although only illustrated for one side, the angles of the paired fins
were determined for both sides of the fish.