Love and Lust

12.11.12 7:45 PM ET

Ask Christopher Ryan Anything

Readers ask the author of 'Sex at Dawn: How We Mate, Why We Stray, and What It Means for Modern Relationships' why humans have more sex than animals, how agriculture changed sex, and where jealousy comes from.

A reader asks Christopher Ryan: Why are women usually louder than men during sex?

A reader asks Christopher Ryan: Why is gangbang porn so much more popular among straight men than porn showing many women with one man?

A reader asks Christopher Ryan: What was the most surprising discovery you made while researching your book?

A reader asks Christopher Ryan: What is the most unorthodox culture featured in your book?

A reader asks Christopher Ryan: Where does jealousy come from?

A reader asks Christopher Ryan: How did sexual behavior change over human history?

A reader asks Christopher Ryan: Why do humans have so much more sex than animals? And why are so many marriages sexless?