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Survivorship of inbred (■) and outbred (□) males in the enclosures over time. (A) All males. Inbred males had significantly lower rates of survivorship than outbred males (the first 11 males to die were all inbred) (Kaplan–Meier, P = 0.0012). (B) Territorial males. Inbred males had significantly lower rates of survivorship than outbred males (Kaplan–Meier, P = 0.0001). The number of outbred and inbred territorial males differed initially (see text).
