Skip to main content
. 2015 Apr 13;112(17):5431–5436. doi: 10.1073/pnas.1500541112

Fig. 2.

Fig. 2.

Differential swimming behavior of bovine sperm and T. foetus. (A and B) Clockwise (CW) chiral trajectories of sperm (each 2.81 s long) (A) and random motion trajectories of T. foetus (each 10.22 s) (B). Each colored line is a swimming trajectory, and all of the trajectories start at (0,0) and end at the black dots. A total of 50 trajectories are shown in each plot. (C) Speeds of T. foetus are significantly slower than sperm. ****P < 0.001 (nonparametric Mann– Whitney test). (D) Sperm trajectories are more persistent than T. foetus. Persistence is defined as the ratio between the vector length of the displacement to the contour length of a trajectory. Error bars show SEM.