Christine Peterson, the woman who coined the term “open source,” uses evolutionary biology and the body’s biochemistry to help us understand how to find and keep the right life partner.

Peterson’s insights may not exactly jibe with modern dating and mating.

Men’s and women’s biological systems are different and must be reconciled. And as we push the logic of love and sex into the future, we had better understand not only how we evolved as a species, but how we differ as sexes.