It's a fact that throughout history, humans have dwelled in mostly patriarchal societies where the males are dominant. But Earth is a diverse place. In the parts of the insect world that are organized, the females rule (the others are loners). In colonies, females -- or sometimes the genderless -- are the only ones who have any semblance of a life with a job and purpose and are responsible for all the work involved in running things (building, foraging, defending from outsiders, what-have-you). The males? They have sex and then die - or are eaten. But that's not how it is in the human world... most of the time, anyway.