But there is something more. Just like dogs, there is the bond of the pack. The bond and aggression go hand in hand. Animals lacking the ability to discriminate between other members of their species, e.g. minnows, do not. The presence of aggression does not always mean that there is a bond with other individuals, but a bond with other individuals always means there is aggression.
Aggression is an instinct, even as sex is an instinct.
Thus all efforts at eliminating the causes of aggression can be seen in scientific terms as inherently doomed efforts to prevent a instinctual discharge by means of eliminating its typical eliciting stimuli. To the extent that the efforts to eliminate the eliciting stimuli succeed, the discharge of the aggression becomes less predictable and often more dangerous. Skill in aggression will be needed from time to time, especially by those lacking skill and will. The solution is to ground aggression in a ritual expression that also prepares it for functional application. Aggression has three purposes in nature.