Not true fam. We're not animals. Thats a cliche.
We have an elevated state of consciousness, and level of cognition that animals do not have (some animal species have been shown to have a consciousness but that would be charitably described as being on the level of a human infant or very small child).
With that consciousness we think, feel, understand, etc with our fellow man which controls primitive impulses. We may FEEL like killing someone, but we dont want to go to prison for the rest of our lives and deal with the guilt of taking a life.
So we basically conduct a cost/benefit analysis with almost every situation. Banging and screwing everything that walks may sound like a good idea in theory, but in practice it isnt that simple. To not commit you have to deal with a host of issues: (exposure to crazy girls, lack of love, std's, expending lots of money and effort, dry spells, potentially being old and alone, etc), while there are benefits to a monogamous relationship: (love, unprotected sex all the time, children, stability, economic bolstering, companionship, etc).
We're not going against our biological nature by creating an orderly society --- we're protecting it. Thats how we've evolved and grown as a species.
