Has anyone who has read, the call of the wild know a quote from it that proves 'the strongest survive' relates to natural selection and 'survival of the fittest'? here is the full question: one possible theme of call of the wild could be that, only the strongest survive. explain how this relates to darwin's theory of natural selection and survival of the fittest. do you agree or disagree with this idea? is there one aspect which you agree with, but another you do not? i do not need with any of this, except 1 or 2 quotes that prove to survive, you have to be the strongest. you!