This line of reasoning lead the researchers to develop the following hypothesis: as female economic dependence on male investment increases, so too should anti-promiscuity moralization. That is, men ...

Many believe that most people dislike individuals who have sex with a lot of partners—although one's definition of “a lot” is highly subjective. In study after study, promiscuous people are seen as ...

New research shows that variation in mating behaviours, parental care and differences in ornamentation of the sexes in bird species is driven by demographics rather than vice versa. An international ...