Martha M. Robbins

TL;DR: It is found that the duration of male tenure and the size of the group influences female transfer decisions, and secondary dispersal by females is a rare behavior, believed to be a counterstrategy against sexual coercion by males, reduces feeding competition, assists in predator avoidance, and facilitates mate choice.

TL;DR: It is suggested that the possession of multiple, versatile hand postures present in wild mountain gorillas may represent a shared feature of the African ape and human clade (or even great ape clade) rather than KW per se.

TL;DR: It is demonstrated that during the fruiting season, gorillas consistently opened the seeds of C. edulis using their postcanine dentition, showing a greater breadth of gorilla diets than previously described and suggests gorillas may be a useful model for interpreting the dietary mechanics that necessitated robust craniodental morphology in australopiths.

TL;DR: It is found that females are faced with the dilemma of staying with a silverback at the end of his tenure and risk higher infant mortality versus dispersing and suffering reproductive delays and lower birth rates, showing that female reproductive strategies, namely dispersal, used to counter the effects of sexual coercion by males are not sufficient to overcome the negative consequences of male behavior.

TL;DR: Female mountain gorillas do not control the sex ratio of their offspring at birth, but they may adjust their subsequent maternal investment, consistent with recurring questions about whether any adjustments in birth sex ratios occur in primates.