Fig. 5. Possible sources of kinematic asymmetry. (A) Differences between concave-left (_CL) and concave-right (_CR) curvature amplitude, (B) differences in wave speed () between left-directed and right-directed half tail beats, and (C) non-zero baseline trunk angles (ß), N=11. All were hypothesized to generate kinematic asymmetries (see Materials and methods), but asymmetries were measured only in the differences in curvature amplitude (A) and the non-zero values for baseline trunk angle (C). As in Fig.2, the middle line in each box plot represents the median, the top and bottom edges of the box show the first quartile, error bars denote the second quartile and plus signs indicate values outside the second quartile.