Already controversial, it was abandoned after the lead researcher gave a jaw-dropping speech that referred to the evolutionary basis of violence in monkeys and compared inner cities to a "jungle".
In order to draw conclusions about the evolutionary history of violence, it's not just numbers that matter, Wrangham says. . Gómez agrees that the inability to distinguish between types of lethal violence "is the biggest problem with our work".
Using statistical models, the researchers then estimated the likely levels of such lethal violence for evolutionary ancestors at various points in the family tree of mammals.
Women can and do kill their female partners, a fact that disrupts most theoretical constructs that describe relationship violence, especially evolutionary psychology.
That's the conclusion of a controversial new study, which reaches far back into our family tree to uncover the evolutionary roots of lethal violence among more than 1000 mammalian species.
Thus, an evolutionary advantage of perpetrating violence would be eliminated if the exposure to aggressive acts would traumatize the perpetrator.
Those are also probably influencing the human lethal violence in our evolutionary past".
Writing in the journal Nature, the team of researchers from four Spanish institutions sought to unpick the evolutionary contribution to lethal human violence by looking at how commonly a range of different mammals kill members of the same species.
The paper, in the journal Biological Reviews, argues that the reinforcements evolved amid fighting over females and resources, suggesting that violence drove key evolutionary changes.
But what are we to make of a study cited by Buss that maintains domestic violence is a male evolutionary function to control the female partner and deter her from infidelity?
Many people would prefer peaceful, evolutionary reforms rather than risking instability and violence.
