A lesson to be learnt

Wars have always been fought,
Since the dawn of civilization of man.
It's the survival of the fittest so they say,
When it is in fact, the fittest who ultimately destroy.
That's how human beings are as such,
The fitter they are the more they seek,
Domination n power sets the order of day,
N thus wars are fought n lives are lost.
A lion has power also,
The power to kill ruthlessly n rule,
All the animals that stand below his might.
The power to tip the balance,
Of nature unto his favor.
But never does he seek to do so,
Cause a certain limit he has,
N never once does he exceed,
More then what he needs.
A lesson can be learnt,
From nature n the way it works.