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Motility of a N2 adult worm in the NGM buffer. (a) Trajectory of the worm's body centroid over a swimming cycle. The insets show postures in different time phases. The arrow indicates the head of the worm. (b) Variations of power and propulsion over three cycles. (c) A spatiotemporal contour of the worm's body curvature. The color lines are overlaps of the centerlines of the worm. (d) Comparisons of our measurements (n = 4) and some prior studies.
