Maternal investment in captive bonnet macaques (Macaca radiata)

There were no significant sex differences in duration of interbirth intervals or survival to weaning, and no significant differences in the effects of immature male and female progeny on maternal mortality or ability to invest in future offspring. Low-ranking females appeared to allocate more investment toward their sons. In the long run, low-ranking females may also benefit more from investing in males. The daughters of low-ranking females suffered high mortality as juveniles, and the daughters of low-ranking females who survived to adulthood achieved low dominance ranks. -from Author