Sociobiology is an ambitious social project that tries to explain social lives of human beings within the purview of biological principle of natural selection. The evolution of life follows the biological law of adaptation and selection, the consistent principle of which is ‘competition.’ It follows then that general welfare system promoting the illusion of mutual aid and demoting competition violates the natural law. Sociobiologists like to separate their assertion from any political ideologies but I argue that the separation has been and will be impossible due to the inherent nature of intertwinement of the two domains. From this vantage point, sociobiology is a variation of the social Darwinism and eugenics that prospered from the late 19th and early 20th century. This is my first point to make. Sociobiology is based upon the ‘new synthesis’ which sees evolutionary biology from the perspective of genes instead of individuals and groups. It has expelled group selection view from the evolutionary biology almost entirely, which put emphasis on mutual aid. However, new developments in other biological sciences such as genetics, immunology, ethology and cognitive sciences are accumulating evidences pointing to the other direction. My second point is that sociobiology will not be able to incorporate the new evidences into its theoretical framework unless it abandoned or at least loosened its central credo of competition and selection. Therefore I argue that we are to construct another new synthesis that I propose to call Bio-Sociology instead of Sociobiology. It begins by seeing the same biological and cultural phenomena from different perspectives. The perspectives come from different fields of biology as well as from social sciences and humanities such as psychology, anthropology and philosophy. I argue that the structure of co-evolving biology and culture is to emerge from this kind of mutual exchanges of various perspectives and ideas.