Figure 9.

Complex locomotory gaits from the experiments. (a) The trajectory of the nematode through a lattice with q/L = 0.37 for 32 periods of undulation. As with the previous simulation results (figure 8), the worm moves (A) along the 2–1 diagonal, (B) straight between rows of pillars and (C) transitioning between these two modes. (b) The scaled speed, V/(fL), as a function of time scaled by the average period of undulation. The shaded regions correspond to the time windows associated with the worm motions detailed in the panels.