The question of whether men are predisposed to war runs hot in contemporary scholarship and online discussion. Within this debate, chimpanzee behavior is often cited to explain humans' propensity for violence; the claim is that male chimpanzees kill outsiders because they are evolutionarily inclined, suggesting to some that people are too. The longstanding critique that killing is instead due to human disturbance has been pronounced dead and buried. In
Chimpanzees, War, and History, R. Brian Ferguson challenges this consensus.

By historically contextualizing every reported chimpanzee killing, Ferguson offers and empirically substantiates two hypotheses. Primarily, he provides detailed demonstration of the connection between human impact and intergroup killing of adult chimpanzees. Secondarily, he argues that killings within social groups reflect status conflicts, display violence against defenseless individuals, and payback killings of fallen status bullies. Ferguson also explains broad chimpanzee-bonobo differences
in violence through constructed and transmitted social organizations consistent with new perspectives in evolutionary theory. He deconstructs efforts to illuminate human warfare via chimpanzee analogy, and provides an alternative anthropological theory grounded in Pan-human contrasts that is
applicable to different types of warfare. Bringing readers on a journey through theoretical struggle and clashing ideas about chimpanzees, bonobos, and evolution, Ferguson opens new ground on the age-old question—are men born to kill?