Figure 1.

Boundary patrol participation for 24 Kasekela males. Column height indicates the percentage of patrols that each individual participated in while greater than 12 years old. Numbers above the columns indicate the total number of patrols that each individual joined (numerator), and the number of patrols recorded while that individual was alive and ≥12 years old (denominator). All current and former alpha males are labelled with an alpha (α). Here, we include PX, who suffered a scrotal wound at a young age and was effectively castrated. We excluded PX from analyses.