Chimpanzees are dramatically different. These parties are patrilocal. Here the males stay and the females leave and tend to be more solitary. Violent male-male competition occurs between groups, although it would be inaccurate to say that status within the group is unimportant or is not gained by physical force. When females ovulate, males can be very demanding of sexual favors and will use their greater strength to obtain them.
Bonobos have societies where the strongest bonds are between unrelated females.
With the bonobos, sexuality infiltrates all aspects of female life, with sex used to facilitate interpersonal relationships as well. Potential male dominance is controlled by females banding together. These dramatic contrasts between baboons, chimps and bonobos seem to preclude any idea of a linear trajectory from primates to humans with respect to sexuality. Fisher proposes that sex drive evolved so that we can mate with anybody. However to conserve energy, the co-evolution of attraction allows us to have an individual romantic sexual focus.