Christopher Ryan is the author of Sex at Dawn, a book investigating the evolution of mating strategies of men and women.
In 2013 he gave a TED talk entitled ‘Are We Designed to Be Sexual Omnivores‘, embedded below.
In the talk he argues the classic oppositional monogamous relationship model, where women promise fidelity and in return men provide safety and shelter, is a relatively recent invention, beginning around 10,000 years ago due to advancements in agriculture.
In the 200,000 years prior we lived in hunter gatherer groups, where overlapping sexual relationships were a more successful mating strategy to ensure survival of the tribe. (more…)