To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 2. Rotational view of 3-D trajectories for the RHΔhx (RH parental 1) and TKO parasites included in Video S1. The traveling sphere associated with each track represents the centroid of the parasite traveling along that path. Length of arrow = 16 μm. The cortical microtubules of Toxoplasma gondii underlie the helicity of parasite movement Isadonna F. Tengganu, Luisa F. Arias Padilla, Jonathan Munera Lopez, Jun Liu, Peter T. Brown, John M. Murray, and Ke Hu J Cell Sci 2023. 136:None-None; doi: 10.1242/jcs.261270 Download Original Video