What causes a child to grow up gay or straight? Neuroscientist Simon LeVay summarizes a wealth of scientific evidence that points to one inescapable conclusion: Sexual orientation results primarily from an interaction between genes, sex hormones, and the cells of the developing body and brain. LeVay takes the reader on a whirlwind tour of laboratories that specialize in genetics, endocrinology, neuroscience, cognitive psychology, evolutionary psychology, and family demographics. He describ...

Attrazione, amore, sesso. Il sesso è il più potente stimolo presente nelle nostre vite dopo la fame. È ciò che ci spinge a cercare un contatto intimo con un'altra persona e a stringere relazioni che possono essere fugaci o permanenti, felici o travagliate. Ma il sesso e la sessualità sono ancora circondati da un alone di mistero: perché non ci riproduciamo, come alcuni animali, attraverso la partenogenesi? Perché la maggior parte delle nostre abitudini sessuali non ha nulla a che fare con ...

Sex, after hunger, may be the most powerful motivating force in our lives. It drives us to seek intimate contact with others and to form relationships that may be fleeting or lifelong, blissful or troubled. Yet many mysteries surround sex and sexuality: Why don’t we reproduce by virgin birth? Why does so much of our sexual behavior have nothing to do with reproduction? Why isn’t everyone heterosexual? How does the brain create sexual arousal? How do sexual kinks develop? Is porn harmful? W...

Sex, after hunger, may be the most powerful motivating force in our lives. It drives us to seek intimate contact with others and to form relationships that may be fleeting or lifelong, blissful or troubled. Yet many mysteries surround sex and sexuality: Why don’t we reproduce by virgin birth? Why does so much of our sexual behavior have nothing to do with reproduction? Why isn’t everyone heterosexual? How does the brain create sexual arousal? How do sexual kinks develop? Is porn harmful? W...

Sex, after hunger, may be the most powerful motivating force in our lives. It drives us to seek intimate contact with others and to form relationships that may be fleeting or lifelong, blissful or troubled. Yet many mysteries surround sex and sexuality: Why don't we reproduce by virgin birth? Why does so much of our sexual behavior have nothing to do with reproduction? Why isn't everyone heterosexual? How does the brain create sexual arousal? How do sexual kinks develop? Is porn harmful? W...

The discovery of life on other planets would be perhaps the most momentous revelation in human history, more disorienting and more profound than either the Copernican or Darwinian revolutions, which knocked the earth from the center of the universe and humankind from its position of lofty self-regard. In Here Be Dragons, astronomer David Koerner and neurobiologist Simon LeVay offer a scientifically compelling and colorful account of the search for life beyond Earth. The authors su...