What is culture, really?

Four neuroanthropologists quote the following neat definition of culture: “Culture can be broadly defined as the repertoire of socially generated behaviors typical within a group of interrelated individuals.” Therefore, “behavior patterns exhibited by a range of social species are cultural – including location-behavior associations in fish, dialect variants of bird songs,,,, seed feeding and gathering procedures in rats,” etc. True, “culture is almost always exclusively discussed with reference to the one species that has made a virtue of cultural production, reproduction, and transformation, that is, the human species” – but the difference between the behavioural patterns of gupi fish and human beings appears to be one of degree. In my naïveté I thought “culture” was about weaving those webs of meaning older anthropologists claimed to study. But maybe “behaviour patterns” is all we are left with after all those centuries of disenchantment, desacralization, profanization, immanentization of existence – you name it. Or – this is all such contemporary “engineers of the human soul” can observe and study experimentally?