What are some examples of drives and behavior tendencies which have helped humans survive in the environments in which we have lived over the last few thousands of years?

    I believe one of the most important drives and behavior tendencies has been to further the evolution of human intelligence. By furthering the evolution of human intelligence humans have insured or attempted to insure that survival in all environments in which we have lived has become an easier process, by which we are able to understand the means necessary to adapt to those environments, and the means for not only survival but also for progression in those environments.