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Bonded by Evolution: The New Science of Love and Connection

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A groundbreaking look at the science of attraction and compatibility, challenging our most fundamental assumptions about how human mating evolved—to demonstrate the real keys to romantic attachment.

Over the past few decades, a buzzy new branch of science has spread a deeply flawed story about romantic relationships. Cloaking itself in the language of incontrovertible Darwinian fact, evolutionary psychology claims that our minds have been shaped by primal drives that pit the genders against each other, from the myth that men are wired to be promiscuous to the notion that wealth, status, and beauty are the ultimate aphrodisiacs.

Drawing on pathbreaking research—including original experiments from his own lab—UC Davis psychology professor Paul Eastwick reveals that these stories bear little resemblance to how pair-bonding really works. While beauty and charisma factor into first impressions, their influence fades fast—after a few months, we barely agree on who's "desirable." From ancestral times through the present, Eastwick shows, lasting attraction has been built through gradual, often mundane moments that forge strong attachment bonds. Ultimately, he offers a liberating new paradigm for finding meaningful, exciting relationships, showing

Why the traits we often look for in a partner—personality, lifestyle, values, and humor—are poor predictors of compatibility, and what behaviors and experiences we should focus on instead Why someone's tendency to “date around” or their reputation as a player has little bearing on their long-term relationship potential Why the most secure relationships offer a "safe haven" and "secure base" for each partner, and how to cultivate them in new and existing relationships By excavating the hidden history of human mating, Eastwick paints a radical new picture of the roots of enduring chemistry. Distilling evolutionary biology, anthropology, and psychology into accessible insights, Bonded by Evolution explains why we so often choose dating strategies that make us miserable and how to use a more evolved approach.

352 pages, Hardcover

Published February 10, 2026

22 people are currently reading
4248 people want to read

About the author

Paul Eastwick

1 book7 followers

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Displaying 1 - 8 of 8 reviews
Profile Image for Lucia.
149 reviews16 followers
January 29, 2026
Pushing back against the 90s-00s buzzy and hijacked "EvoScript" (evolutionary psychology), Professor Paul Eastwick of UC Davis cuts through the pop psychology take on relationships to share the most up to date science of relationships.

Essentially, this book takes the reader through science backed explanations of how meaningful relationships are formed through community networks, authenticity and time v. just some numbers and ratings game dating apps would have singles spend money on. Without spoiling the main points, Eastwick shares that perceived "mate value" is fleeting but relationships are built on compatibility and being a communal person and good partner. He provides evidence to push against the myth of traditional gender views and even provides guidance on how to effectively date in the modern age without losing hope.

Remarkably, Eastwick achieves all of this while also fighting toxic masculinity without his voicing becoming preachy.

That said, this is not a self-help book in the traditional sense. It's a reality check for singles, presenting the facts and advice in an effectively accessible way without being patronizing.

I honestly hope this book becomes a best seller because it deserves to be. Not just because it's interesting, but because I think it truly has the power to make people more loving of themselves, their partners (current or future) and their communities.
Profile Image for Paloma FC (in my reading era).
349 reviews64 followers
February 16, 2026
4 / 5 ⭐

I decided to purchase this book mainly because I really enjoy listening to the 'Love Factually' podcast every week that the author of this book hosts. I'm also interested in the topic of how personal relationships work from an evolutionary perspective. If these topics sound interesting to you, I wager that you'll enjoy Bonded by Evolution, too.

Keep in mind that there are many scientific references throughout the book, and it can get pretty nerdy at times. But overall I'm glad to have purchased it, even if towards the end I lost some interest on the topics covered in this book, mostly due to the fact that there's so much information.

Happy reading 📚
Profile Image for Ryan Fehr.
3 reviews1 follower
February 23, 2026
The best book I’ve read on the science of relationships. It debunks modern myths in a way that’s enjoyable and accessible, and genuinely changed how I think about human connection. Highly recommended.
Profile Image for Julie Simons.
438 reviews13 followers
February 21, 2026
In Bonded by Evolution, Paul Eastwick provides a refreshing, evidence-based antidote to the "folk wisdom" and pseudo-science that often plague the dating industry. While many evolutionary psychology texts lean heavily on rigid, prehistoric archetypes, Eastwick brings the conversation into the 21st century by focusing on how our evolved brains navigate the specific hurdles of the modern age.
The Myth of the "Algorithm"

For many readers—and certainly for single clients frustrated by digital dating—the highlight of this book is Eastwick’s clinical dismantling of online dating algorithms. He convincingly argues that while apps are excellent at providing access to a large pool of candidates, their "matching" capabilities are largely illusory.

The data suggests that compatibility isn't something that can be predicted by a spreadsheet of personality traits or shared hobbies before two people meet. Instead, Eastwick posits that attraction is a dynamic, dyadic process that only begins to take shape once two people are in the same room.

Fresh Insights into Mate Selection
The book shines in its exploration of the what and how of selection. Eastwick moves beyond the "shopping list" mentality (where we think we know what we want) to show that our "stated preferences" rarely align with our "in-vivo" choices. This gap between who we think we should be with and who we actually bond with is a crucial takeaway for anyone looking to understand the mechanics of long-term attachment.

Why It’s a Must-Read for Clinicians
As a psychotherapist, you will find this an invaluable resource for clients who feel "broken" by the modern dating cycle. It provides a grounded framework to help them:

• Manage expectations regarding app success.
• Pivot focus from checking boxes to experiencing the "relational spark."
• Reduce self-blame by understanding the evolutionary hurdles of finding a mate in a high-choice environment.

Final Verdict: While the academic depth might be dense for a casual reader, it is gold for the intentional dater or the professional counselor. It replaces the "magic" of dating with the "mechanics" of human connection.
Profile Image for K.
165 reviews
February 11, 2026
This was an enjoyable, fun-to-read book that provides an interesting look at couples, relationships, and bonding. It's written at a level that makes it accessible to most readers without being too simplistic. I like reading popular science books and this one stands out as one that's more thoughtfully written, as it's both detailed and easy to follow.

When I first started the book, I was a bit worried that it would focus too much on heterosexual relationships, but there was representation of others throughout. The book includes lots of interesting research and anecdotes, and several times I found myself thinking, "of course, that makes sense!" I especially liked the part about the two women who became more than friends after going through some hard times together.

The author did a great job explaining how the typical generalisations about attraction are not true, showing instead how attachment actually develops over time. This is something we see in everyday life: attraction grows out of ordinary shared experiences rather than a fixed list of 'ideal' traits that we look for in a partner. I also liked that the author used examples from popular films that most readers can likely connect with.

I wasn't interested in the parts comparing humans to other apes. While this might be interesting to some people from a biological perspective, they felt a bit less central to the book's main focus.

This book will hopefully encourage people to reconsider common assumptions about this topic.
Profile Image for Josie Lumley.
23 reviews
Review of advance copy
January 21, 2026
Healthily undid a lot of the unhealthy thinking I’ve absorbed about connection and compatibility. Successfully deinfluenced.
Profile Image for Jennifer.
197 reviews11 followers
Review of advance copy received from Goodreads Giveaways
February 8, 2026
This book of Bonded By Evolution: The New Science of Love and Connection by Paul Eastwick is a riveting read to explore.
Profile Image for Vanessa Bohns.
Author 12 books41 followers
February 22, 2026
An illuminating, level-headed take on finding a long-term match. The science on close relationships is reassuringly more aligned with what we all hope to be true, i.e., compatibility is more important than superficial partner features, which has important implications for dating.
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