Historically the words altruism and ethics ocurre rather in religious or philosophical discourses than in texts about behavioral sciences. Recently, however, a theoretical approach of one kind of human interaction called Prisioner's Dilemma generated softwares designed by researchers in the field that simulate this situation. The results of computer tournamentes among different designs of softwares reveals that those strategies based in cooperation gave to their performers a better chance of survival then the softwares based on predatory or competitive strategies.
