Anisotropies between the leading and trailing halves of H I-tailed galaxies (see the main text for details). From top to bottom we show: the atomic gas mass, molecular gas mass, SFR, molecular gas depletion time, and stellar mass. Solid lines and shaded bands mark the median and statistical error on the median. Both errors on the median and error bars on the data points are derived from bootstrap resampling. Both H₂ and SFR show excess emission on the leading half.