★ A compelling work by Dr. Shi Jun, winner of the "China Wenjin Book Award",unlocking human mating and romantic behaviors from an evolutionary perspective to scientifically understand the nature of love and marriage. This book analyzes the fundamental elements of human emotional evolution and clarifies the internal logic of male-female dynamics, taking you straight to the essence of love and marriage for a deeper understanding of their significance.
★ An "encyclopedia" on gender relations. With lucid and engaging prose and understated humor, the author vividly reveals the subtle truths about male and female emotions.
★ The author explores various topics concerning gender relations: How do men and women choose mates? Are humans polygamous or monogamous by nature? Why are husbands usually a few years older than their wives? …
★ English translation samples available.

Why do men love to boast, and women love to gossip?
Why do men tend to “judge by appearance” when choosing a mate, while women place more emphasis on “financial stability”?
Why are men often drawn to younger women, while women are frequently attracted to older men?

This book analyzes the fundamental elements of human emotional evolution from an evolutionary perspective and clarifies the internal logic of male-female dynamics, taking you straight to the essence of love and marriage for a deeper understanding of their significance. With lucid and engaging prose and understated humor, the author vividly reveals the subtle truths about male and female emotions. Gender relations are the result of long-term evolution. From courtship and mate selection to marriage and childbearing, all human romantic behaviors are underpinned by an internal logic of strategic interplay. Gender relations have evolved into their current patterns through long-term strategic games, where both men and women strategize to obtain the maximum reproductive returns with the minimum investment.

Shi Jun
Winner of the China Wenjin Book Award, he holds a Ph.D. in Biology and is an Associate Professor at Anhui Science and Technology University.
He has long been dedicated to popular science writing in the fields of evolutionary theory and sociobiology, adept at presenting rigorous scientific knowledge in an accessible and humorous style.
His published popular science works include "Ghost Stories are All Lies," "Evolution Unraveled," "The Crazy History of Human Evolution," and "A Brief History of Love," all of which have been widely praised by readers.
Among them, "Evolution Unraveled" won the 16th China Wenjin Book Award and was shortlisted for "2020 Chinese Book of the Year".

Introduction: Emotion and Game Theory 001
Chapter 1 Tracing the Origins of Gender Dynamics 011
The Benefits of Sexual Reproduction 016
The Logic of Sexual Differentiation 039
The Tactics of Males 080
Chapter 2 Animal Mating Systems 109
Mate Selection Strategies 114
Reproductive Models 138
Parental Care 154
Chapter 3 Human Mate Choice 177
Male Mate Selection Strategies 183
Female Mate Selection Strategies 200
Intersexual Interaction 222
Chapter 4 Human Marriage Systems 247
Evidence for Polygyny 252
The Logic of Monogamy 274
Competition Among Women 297
Chapter 5 The Safeguards of Marriage 319
The Male Grand Alliance 325
The Chastity Campaign 342
The Grand Finale of the Game 359
Conclusion: The Meaning of Marriage 385