A problem arose a while back in some game preserve in Africa. Dozens of rhinoceroses continued to be found dead -- broken ribs and legs. It was a puzzle since the rhino was assumed to have no natural enemies. Vigilance gave the answer. Young male elephants were attacking them, knocking them over and them leaning a knee into their midsection. This was very unusual behavior and the cause was soon discovered for the elephant's extremely aggressive behavior which they even engaged in between themselves. All of the elephants were young and recently introduced, as a game preservation measure, into the park. The culprits were all young males.

Since this behavior was never noticed in a herd where older males were present, it was decided to add old males to the population. The aggressive behavior of the young males ceased and no further rhinoceros deaths occurred from that cause.

This is also true in the talking ape family. Remove the father and the young males become unruly often to the point of overt criminality. Growing up, I had seen young male friends, whose daddy had flown the coop, show the most disrespectful tone to their mothers. If I had ever uttered one such remark, I knew it would not go unpunished.