There is a countering idea within evolution - that is that on the surface it looks like evolving is all about who is dominant and most violent however there is also a possibility that under that current relationships are developed between species and within species that result in symbiosis, it is possible that real success as a species is the result of your ability to work symbiotically with other species take bees for example, they wander around from plant to plant (another species) to collect what they use to make honey and feed themselves and their young but this action results in spreading of pollen from one plant to another. Anyway that is my two cents.