Fig. 3

Histogram of distribution of CV ratios (female CV/(female CV + male CV)). To examine whether the variance from the mean was normally distributed for the different traits, we examined the CV ratios. A value of 0.5 (indicated by the vertical black line) would indicate that males and females are the same. Values to the right of the vertical black line for each trait are values where females are more variable than males. Values to the left of the line indicate males are variable than females. **Males were more variable on the E-Phys trait (p = 0.037) and the neurochemistry trait (p = 0.0196). *Females were more variable than males on the non-brain measures (p < 0.0001)