Fixation of strong altruism in Hamilton's random group model. With G = 64 loci and R = 0.005 the probability of fixation of the strongly altruistic A-type estimated after 8,652 independent introductions was 5.78 × 10-4. The plot shows a sample simulation where the A-type reached fixation at generation 8,088 after 330 prior unsuccessful introductions into the population. Time to fixation was 241 generations.
Santos and Szathmáry BMC Evolutionary Biology 2008 8:281 doi:10.1186/1471-2148-8-281