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Bonded by Evolution: What We’ve Got Wrong About Love and Connection

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Brought to you by Penguin.

A ground-breaking look at the science of love and connection – and an urgent corrective to some of our most fundamental assumptions about attraction.


We’re told that what men and women desire from relationship is different and at odds – he’s looking for novelty, she’s looking for commitment; he’s concerned with looks, she’s concerned with status. We’re told that we live in a hierarchy of romantic inequality, in which desirability is predetermined by a narrow set of characteristics and where some people are marriage material while others are wired for promiscuity. Such ideas have their roots in a branch of science called evolutionary psychology, and over the past few decades its ideas have permeated our culture and fuelled a narrative that inspires despair and anxiety – and, in its most extreme form, misogyny and violence.

But this narrative is unscientific. The truth about human attraction – and the way evolution plays out in our romantic lives – is much more interesting and optimistic.

Bonded by Evolution offers a radical new picture of the roots of enduring chemistry. Distilling evolutionary biology, anthropology and psychology and informed by his pathbreaking research and original experiments at the Attraction and Relationships Research Laboratory in California, psychology professor Paul Eastwick reveals how attraction is best depicted as a process of finding – and, often, creating – a compatible relationship. Once we understand how ancestral humans sought compatible partners in small networks, we can build a clearer – and brighter – picture of how attraction, sex and relationships really work.

© Paul Eastwick 2026 (P) Penguin Audio 2026

Audible Audio

Published February 12, 2026

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Paul Eastwick

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5 stars
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15 (24%)
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14 (22%)
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Displaying 1 - 14 of 14 reviews
Profile Image for Lucia.
150 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).
366 reviews65 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.
5 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.
451 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.
195 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 Bryan.
118 reviews2 followers
March 17, 2026
4.5, really enjoyable, deserves more attention, and hopefully a larger second printing.

I should have so much to say, I constantly talk with and texted my friends about ideas in this book. Some ideas were so obvious, but, running counter to messaging from the 90's, seemed revolutionary.

I think different parts of this book will stand out to different people. Personally I loved the academic drama, and evoPsych slander! But I think, regardless of the specifics you take out of this book, the broader message is clear: We should be positive and optimistic about relationships. Also tinder is full of narcissists, men and women can (and should!) be friends, hypergamy is uncommon, what people want in partners and relationships is probably less gendered than we think, and the key to relationships is compatibility, which we know very little about, and (so far) cannot be predicted? At least there are still some mysteries still out there! Now lets see how hard these lessons are to apply...
401 reviews5 followers
March 9, 2026
The first half or so of the book is commendable but a bit boring in that it's mostly about deflating myths which are popular in the manosphere/incel community and I do not really interact much with these. The science about how people meet and find compatible partners was interesting and it was explained just enough to get an idea of how solid the finding might be.

Most examples and arguments are about cishet relationships. The LGBTQ+ case is considered but mostly shown as a model to follow (as per the seminal article "The Friends-to-Lovers Pathway to Romance: Prevalent, Preferred, and Overlooked by Science"). I was looking for some advice and instead I'm told we're the experts, sob.

In terms of practical advice, there is some which boils down to: interact with more people in person. Very sensible.
1 review
March 4, 2026
This book is a triumph. Witty, compelling, and scientifically accurate, it takes the reader through the best of what psychology research currently has to offer in terms of understanding of romantic love. The book also dismantles some of the worst myths about dating, romance, and gender. I can't recommend it enough.
Profile Image for Josie Lumley.
25 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 books42 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.
Profile Image for Jennifer.
339 reviews3 followers
March 16, 2026
Super interesting, accessible, enjoyable nonfiction read. I especially appreciated explicit discussions of the manosphere
Profile Image for Henry 磊磊.
Author 2 books1 follower
March 17, 2026
admirable effort to move the needle in psychology research and popular understandings of relationships, though for me, the only parts worth reading were the intro and part 2.
Profile Image for Serena Mancini.
240 reviews2 followers
March 26, 2026
The evolutionary aspects of attraction were interesting, but this book is definitely aimed at single people.
Displaying 1 - 14 of 14 reviews