The Sexual How

Nathan Lentz examines the deep evolutionary history of sex, gender, and mating to explain modern human relationship behaviors.

Drawing on comparative biology, genetics, and evolutionary theory, he traces how reproductive strategies across species have left imprints on human psychology and social patterns.

The book connects ancient biological pressures to present-day mating systems, sexual selection, and cultural practices.

With examples from many taxa, it highlights continuity and divergence in reproductive strategies and their consequences for humans.

Lentz aims to make evolutionary explanations accessible and relevant to contemporary relationship questions.