It's the male bonobo's way of shaking hands and letting everyone know that the conflict has ended amicably. Females have discovered there is strength in numbers. Anthropologist Frances White of Duke University, a bonobo observer at Lomako sinceputs it simply: A genital-genital rub, better known as GG-rubbing by observers, is the most frequent behavior used by bonobo females to reinforce social ties or relieve tension. But the difference in body size is small — only a matter of a few kilograms — and it certainly is not the most interesting difference between the species.
GG-rubbing occurs in the presence of food because food causes tension and excitement, but the intimate contact has the effect of making close friends.
Do bonobos really spend all their time having sex?
Wednesday, 18 June AFP. The rest, as they say, is evolutionary history. View image of This bonobo looks like it is wearing a bad wig Credit: Akili would approach her with a big erection and hover over her. One thing sex does for bonobos is decrease tensions caused by potential competition, often competition for food.