Humans are the only primates to experience romantic love and to bond for life, the only ones to have breasts, rounded buttocks, multiple orgasms, pendulous penises and pubic hair. We’re also the only primates predisposed to monogamy, sexual modesty, private copulation and to regarding incestuous relations as taboo. How these unique features of human sexuality came about have until now, been a perplexing mystery for anthropologists. NP theory changes all that. It explains the evolutionary origins of our most unusual sexual traits, including:
What’s behind our obsession with sexual jealousy, including morbid jealousy that often results in injury or death. and private sex. Also discover why we’re the only primate to have sex in private and what’s behind sexual modesty
why beauty is adaptive. And why having a symmetrical face, smooth skin, clear eyes and a thin nose are so important
why romantic love emerged in one, and only one primate species has never been explained. Learn how romantic love prevented our species from going extinct
The 15,000 year old flint plaquettes from Wilczyce, Poland (top) the curvaceous calcite Venus de Sireil from Dordogne, France (above) and the Victorian erotica suggest the modern appeal for women with curved spines accentuated by rounded buttocks (typical of the medical condition, lordosis) is not just a modern phenomena.
Them+Us explains the evolution of male sexual preferences, explaining why female breasts, bottoms and spinal curvature (lordosis) became subject to sexual selection.