After their culture of violent male dominance was destroyed in less than a generation, this Kenyan troop of baboons underwent a social change that persists decades later: remarkably lower levels of stress hormones and hierarchical competition, increased time spent grooming and huddling with other baboons, and dramatic drops in intragroup violence of all kinds.
"Sapolsky was eager to learn how the troop, which now seemed far too peace-and-love oriented to defend itself, had managed to avoid being taken over. The group managed to avoid a return to violence by reserving all their aggression for the males who occasionally tried to fill the power vacuum. One day, a violent, dominant male fell upon them and attempted to subjugate the troop to his rule. The troop instantly turned on him and literally tore him limb from limb. When Sapolsky went out to study the troop the next day, the baboons were quietly grooming each other as usual, and on the ground beside them was the severed face of the would-be usurper. "
Patriarchy in humans won’t be brought down by chance, but by females organizing politically in resistance.