In this thesis I analyze the evolutionary ethics and propose a new perspective that develops on the notion of altruism. The view of evolutionary ethics, especially the sociobiological account, has some problems. The most important philosophical problem is the &ldquo / is-ought&rdquo / problem which refers to the question as to whether moral propositions can be inferred from factual statements. In order to overcome this problem I suggest a different reading of the notion of altruism namely &ldquo / altruistic behavior practice&rdquo / that refers to norms, habits and repeated actions that provide the sustainability of society. The notion of altruistic behavior practice is presented and evaluated with the help of Alasdair MacIntyre&rsquo / s and John Dewey&rsquo / s moral philosophy. The moral views of these two philosophers are based on human practices and habitual formations in society. In this respect, evolutionary ethics and the notion of altruism are re-established on the basis of human practices and habitual modes of socialization.