The lamb’s expected lifetime 〈T〉 vs. (a) the average node degree 〈k〉 and (b) the power-law parameter γ. The underlying networks are generated by the Price model. The parameters are N = 1000, α = 0, and n = 10, with γ = 2.5 for panel (a), and 〈k〉 = 10 for panel (b). The details about the sites’ selection for the lamb and lions are illustrated in the text. Each data point is the average of 10⁴ independent runs.