作者: Steven W. Gangestad , Randy Thornhill
关键词: Fertile Period 、 Sex characteristics 、 Menstrual cycle 、 Sexual selection 、 Social psychology 、 Preference 、 Demography 、 Mate choice 、 Psychology 、 Attractiveness 、 Fertility
摘要: Evidence suggests that female sexual preferences change across the menstrual cycle. Women's extra–pair copulations tend to occur in their most fertile period, whereas their intra …