Sex at Dawn: The Prehistoric Origins of Modern Sexuality

Christopher Ryan, Ph.D. & Cacilda Jethá, M.D.

Sex at Dawn: The Prehistoric Origins of Modern Sexuality

Christopher Ryan, Ph.D. & Cacilda Jethá, M.D.

Sex at Dawn: The Prehistoric Origins of Modern Sexuality

Christopher Ryan, Ph.D. & Cacilda Jethá, M.D.

Sex at Dawn: The Prehistoric Origins of Modern Sexuality

Christopher Ryan, Ph.D. & Cacilda Jethá, M.D.

Sex at Dawn is a thoroughly original discussion of the origins and nature of human sexuality. More important, it makes sense and is supported by wide-ranging interdisciplinary research. Its authors have a gift for making complex material easy for readers to understand. This breakthrough book features humor, passion, and rare insight.”
— Stanley Krippner, Ph.D., co-editor of Varieties of Anomalous Experience.