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Fig. 8. Lateral vertebral flexion (β) and red muscle activity (horizontal
bars) from sites 1 (top) to 8 (bottom) versus time for two cycles of
an individual lungfish swimming in viscosities of 1, 10, 100 and 1000 cSt,
respectively. Bending convex to the left is represented by positive values of
β. The circles are raw data, and the lines represent a two-point running
average of the raw data. All EMG sites were on the left side of the fish.