The Intimate Animal

The Intimate Animal

The Science of Sex, Fidelity, and Why We Live and Die for Love
by Justin R. Garcia
Psychology 21 min read ★★★★½ 4.5 (35)
Read Summary

About This Book

The Intimate Animal (2026) blends evolutionary biology, psychology, and social science to explain why humans crave deep connection and how our drives for love, sex, and intimacy shape the arc of romantic relationships. It reveals that while we’re wired for social bonds essential to survival, conflicting impulses –⁠ like the tension between social and sexual monogamy –⁠ make modern love complex. Ultimately, it offers insights into navigating attraction, commitment, heartbreak, and connection.

Who Should Read This?

  • Singles navigating modern dating
  • Couples in long-term relationships
  • Anyone curious about the science of love and desire

About the Author

Justin R. Garcia is the Executive Director and Senior Scientist at the Kinsey Institute. He is an evolutionary biologist and leading sex and relationships researcher, serving as the Ruth N. Halls Professor at Indiana University and the scientific advisor to major projects like Match.com’s Singles in America study. He has published extensively in academic journals and is the co-author of the book Evolution and Human Sexual Behavior.