Figure 3: Comparison of pressure contributions to locomotion for control and spinal transect lampreys. | Nature Communications

Figure 3: Comparison of pressure contributions to locomotion for control and spinal transect lampreys.

From: Suction-based propulsion as a basis for efficient animal swimming

Figure 3

(a,b) Spatial distributions of forward pull (cyan arrows), rearward pull (blue), forward push (magenta) and rearward push (red) due to local fluid pressure for control and spinal transect lampreys, respectively. Arrow length is proportional to local pressure magnitude; arrow direction indicates direction of fluid pressure on animal body. Horizontal line indicates 2 cm scale. (c,d) Temporal trends of pressure contributions over 1–2 swimming cycles for control and spinal transect lampreys, respectively. Vertical lines indicate instants corresponding to data in panels (a,b). (e,f) Temporal trends of net pull, net push and net thrust due to pressure on control and spinal transect lampreys, respectively. Vertical lines indicate instants corresponding to data in panels (a,b). Data represents instantaneous measurements during the swimming of individual animals.

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