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Sex at Dawn: The Prehistoric Origins of Modern Sexuality

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4.01  ·  Rating details ·  22,209 ratings  ·  2,206 reviews
Since Darwin's day, we've been told that sexual monogamy comes naturally to our species. Mainstream science--as well as religious and cultural institutions--has maintained that men and women evolved in families in which a man's possessions and protection were exchanged for a woman's fertility and fidelity. But this narrative is collapsing. Fewer and fewer couples are getti ...more
Hardcover, 400 pages
Published June 29th 2010 by HarperCollins
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Popular Answered Questions
El They is very little mention of any LGBTQIA+/SAGA sexuality or gender identities... It is primarily focused on cis-het sexual behavior.
Lê Quân it is rather about the origin and meaning of sex - sexual intercourse (not how to do sex)

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Average rating 4.01  · 
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 ·  22,209 ratings  ·  2,206 reviews


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Christopher Ryan
Jan 03, 2011 rated it it was amazing  ·  (Review from the author)
Well, I wrote the damned thing. Can I give myself five stars? Everybody thinks their baby is beautiful, right?
Warwick
A popular science book for people who hate science, Sex at Dawn manages to combine weak arguments with a prose style of such overbearing condescension that I had to grit my teeth to get through it. Everything is couched in terms of facile jokiness or, even worse, of coy euphemism, so that we have the ghastly prospect of a supposedly serious book about sexuality that can talk about a ‘human female's naughty bits’.

The basic argument is that evolutionary psychologists, anthropologists and palaeonto
...more
Chris
Dec 29, 2010 rated it it was amazing
Hey! Hey, baby, baby, waitwaitwaitwait. Wait. Wait! Baby, don't... don't freak out

Okay, okay, I know what this looks like, but I can explain! Quiet, Chad, let me handle this. I can explain! I'm just - please, stop crying and listen - I'm just fulfilling my evolutionary heritage and helping to cement social bonds with... um... the pizza boy, but that'snotthepoint!! That's
not the point! Look, before you do anything, y'know, drastic, you just need to read this book....

Humans are really good at fi
...more
Valerie
Jul 10, 2010 rated it liked it
Recommended to Valerie by: Dan Savage
A long time ago, in a galaxy far away, I was an anthropology major at UCSC. Although I wanted to specialize in physical anthropology, I did quite a bit of classwork in cultural. One of the things that always fascinated me was fictitious kin. The idea of creating a network of ties to promote sharing among small groups. Church congregations and the scooby gang of Joss Whedon's Buffy are examples of this. I found the author's description of several of these types of kinship networks based on common ...more
Taka
Fantastic--

This is one of those paradigm-shifting books that pretty much changes your belief system. Having read Robin Baker's Sperm Wars and absorbing its grim interpretation of human sexuality, this book, Sex at Dawn came as a pleasant and generally kick-ass surprise.

With abundance of humor and compelling narrative, the authors posit that human beings, like their primate cousins, originally engaged in multiple mating for most of their existence on earth before the advent of agriculture. And "m
...more
Steve
Feb 07, 2011 rated it it was amazing
I loved this book, but to be honest I have nowhere near the education to be able to evaluate the validity of the arguments presented in the book. I have seen grumblings here and there about the book, mostly from religious people who this book will understandably offend.

One of the main messages of the book is that monogamy is not natural to either men or women.

The authors are two researchers and psychologists, both married.

Despite being academics and approaching a variety of very weighty subjects
...more
Brendan Shea
Feb 11, 2013 rated it did not like it
I rarely stop reading books before I'm done (and I've read a lot of pretty bad books as a result!), but I think I will with this one. The book has two serious problems: first, it misrepresents (or maybe misunderstands?) the standard model of human sexuality from ev. biology. Perhaps because they are so focused on the most extreme form of ev. psych, they repeatedly oversimplify things, and then accuse various authors (e.g., Darwin) of defending such oversimplified theories because of sexism. Seco ...more
Ahmad Sharabiani
Sex at Dawn: The Prehistoric Origins of Modern Sexuality, Christopher Ryan
Sex at Dawn: The Prehistoric Origins of Modern Sexuality, is a 2010 book about the evolution of monogamy in humans and human mating systems by Christopher Ryan and Cacilda Jethá. In opposition to what the authors see as the "standard narrative" of human sexual evolution, they contend that having multiple sexual partners was common and accepted in the environment of evolutionary adaptedness. The authors contend that mobile,
...more
Lucas
Mar 29, 2013 rated it did not like it  ·  review of another edition
I feel completely cheated...

This review is directed more towards people who have already read Sex at Dawn, and to the authors. But hopefully this will be of use to new readers as well.

I'll start by saying that when I first read Sex at Dawn I was blown away. This book completely changed my view of monogamy, sex, and relationships. It sparked this new openness and acceptance in me, and I will say had a very positive impact on my relationship. I thought here was the book that everyone NEEDS to read
...more
Sarah
Aug 05, 2010 rated it did not like it
Overrated, mostly unfunny but overly glib, using the same bad logic he accuses the monogamy pushers of, this book which is basically shilling for open relationships vis-a-vis evolutionary psychology is intellectually dishonest AND irritating, which is quite a feat. I can't believe Dan Savage pushed this crap. There are better arguments for new takes on monogamy, open relationships, and polyamory out there - we don't need to cloak them in bad, gender-essentialist "science".
Myke Cole
Dec 18, 2017 rated it liked it
Look, the writers of this intensely popular book don't need my help, and certainly won't be bothered by my disapproval, so I offer my opinion here mostly in the interest of hearing myself talk.

This is a really well written book that does a great job of confronting titillating issues head on, with honesty and humor and giving us an unflinching look at our sexual history - by which I really mean our primatological history - a look at how we boinked in our pre-agricultural past.

From a primatology
...more
Jason
Jul 01, 2018 rated it liked it  ·  review of another edition
Shelves: 2018, reviewed
My friend found this book intriguing. Couldn’t put it down, he says. I could’ve probably put it down, but I promised him I would read it and read it I did. In Sex at Dawn, Christopher Ryan lays down a slew of what he believes to be persuasive arguments for our prehistoric ancestors being sexually promiscuous. Considering that we are most closely related to the bonobo (a ‘pygmy chimp’) in the evolutionary sense, he draws parallels between the bonobo’s behavior and anatomical particularities to th ...more
Liz
Aug 25, 2010 rated it it was amazing  ·  review of another edition
This book makes one depressed about the human race from agriculture on. However, it kind of awesomely doesn't make me feel like a slut, proving (through science!) how our anatomy developed and how we, as humans, were made to have sex with many different people. Sometimes all at once. With chocolate sauce. Kidding about the chocolate sauce.

Really, the book goes over our closest relatives, and then discusses common beliefs about the human race, and proves or disproves some of those beliefs. It's p
...more
Fabian
Dec 03, 2019 rated it really liked it  ·  review of another edition
Looking backward to understand our confusing wacky present & everlooming future. This sincere recommendation has been brought into our focus to make the decision: what is happiness in terms of sex? This book is the alpha & omega of Human Sexual Behavior in Prehistory. If you read Darwin & respect him (we all do & should), this will debunk many of his own preconceptions of sex and gender and genetics. The standard narrative: boy wants it, girl doesn't, but they stay together and raise kids. But n ...more
g
Nov 16, 2010 rated it liked it
Interesting read and lots to think about.

What I loved:
-Less patriarchal approach to science/sexuality/evolution.
-Chapters on bonobos--so important.
-Chapters on sexuality as a bonding tool.

What I didn't love:
-While the argument that culture can poison scientific fact is a valid and awesome one, to rest your entire book on it is problematic. Who's to say that these hypothesis aren't subject to the same corruption? Of course, that's never addressed. I would be interested to hear whether these autho
...more
Lightreads
Nov 05, 2011 rated it really liked it
My girlfriend and I had one of those gradual comings-together where you're going along fine, life is good, and then you look up one day and . . . wait . . . hang on . . . you're dating that person you thought you were just sleeping with. (For the record, some of us *cough* figured this out much sooner than others of us.) When it happens like that, it's hard to figure out what "counts," if you care about that sort of thing -- anniversaries, firsts, all those markers of 'real relationshipness.' Lu ...more
Althea Ann
Oct 27, 2012 rated it liked it
This review has been hidden because it contains spoilers. To view it, click here.
Thomas
May 19, 2014 rated it it was ok  ·  review of another edition
A tragic disappointment of a book, Sex at Dawn attempts to sell pseudoscience as the real deal, and it fails. The first 100 pages intrigued me because of how Christopher Ryan and Cacilda Jetha blended evolutionary psychology, history, and mythology to discuss human sexual relationships. But then they began to make illogical conclusions based on circumstantial and underdeveloped evidence. They critique Richard Dawkins, Matt Ridley, and other reputable scientists, and they try to mold their straw ...more
Jenbebookish
Aug 05, 2012 rated it it was amazing
Honestly, this is such a great book. In my personal opinion, this is a book everybody should read. It's a really great eye opener in regards to human nature that counteracts the general tendency of people in America to idealize relationships and monogamy in what can be seen as a relatively unnatural way. I do realize that as human beings we are not only potentially logical beings with the ability to reason but also very emotional ones as well and that what we happen to know factually or scientif ...more
Nancy Rector
Aug 30, 2010 rated it it was amazing  ·  review of another edition
Phenomenal mind opening book about the true origins of our societies typical view of sex and monogamy. Also delves into the topics of war and jealousy and if those are indeed innate traits of humans. The facts show they are not. As with many beliefs that are just mindlessly accepted by so many people this points out that many things are not what they seem. And that we as a people need to have the courage and strength to think for ourselves and to continually question and learn for ourselves.

The
...more
Sarah
Jan 14, 2011 rated it liked it
When Sex at Dawn first came out it received a bunch of ecstatic reviews, but I had my doubts. It sounded like more made-up, tenuously supported evolutionary psychology BS that just happened to be more to my (and the reviewers') liking than the standard evo-psych sexuality stories. My expectations were low.

Turns out 85% of the book is focused explicitly on debunking and mocking evo-psych theories. "Asking whether our species is naturally peaceful or warlike, generous or possessive, free-loving or
...more
James
Oct 05, 2011 rated it did not like it
Now, I agree with the fundamental point they were making here - humans evolved to use sex socially and with many partners, not for monogamy - but their use of science was...shoddy, and high school level writing at best. They at times (oh hell, all the time) dipped back into stereotype to support their claims and to justify their choices of topic. I frequently found myself reading sections of this aloud to my roommates so we could rip it apart together - and that was pretty fun. They're depressin ...more
Kumar McMillan
Oct 23, 2010 rated it liked it
UPDATE: After writing this review (below) I looked deeper into the author's references; most of them are psuedoscience. I was very disappointed to learn that this book is not based on sound science.

This is a fascinating and well researched (edit: so I thought!) view into how humans became the highly sexual creatures we are today. It flips the outdated and poorly proven Hobbes theory--that we were brutish, impoverished, war torn prehistoric animals--on its head. Instead, it offers compelling evid
...more
sologdin
Jan 14, 2012 rated it it was ok
Shelves: sciences, sexology
A popularizer's polemic against evolutionary psychology vis-a-vis the doctrine and institution of monogamy. The book is well-humored, and the prose reads well.

The broad strokes of the argument are difficult to dispute, and I wouldn't want to dispute them. Monogamy earned this ass-kicking--and it is an ass-kicking, a true shellacking, considering the data marshalled in support, as well as the motion-for-summary-judgment style of pointing out a lack of support for the opponent's essential allegat
...more
Chloe
Books on sex are a dime a dozen these days. From tomes on how to create a more spiritual union or bring more spice to your marriage through the cunning use of super glue, paperclips, and a rubber band (the well-named MacGuyver technique) to how to give your lover earth-shattering orgasms through locating some mythical pressure point, this genre has risen to be one of the pillars of the self-help section of a bookstore. It's gotten so that this subgenre receives even less respect (and deservedly ...more
Mehrsa
Jun 03, 2017 rated it it was ok
This book is idiotic. And I don't say this because they are advocating open marriages. I knew that going in and I was interested in the idea (I decided to read it after reading a NYTs article about open marriages so I was intrigued). No, it's idiotic because they are cherry picking historical data, they don't deal with any serious alternative theories, and then they present their case as though you're stupid if you don't believe it. There were some really interesting insights in here about human ...more
Laura Kelley
Jul 08, 2010 rated it it was amazing
Shelves: non-fiction
This book is not an attack on monogamy. It is a well-researched and well-written exploration of how modern sexuality has evolved. This is a must read for anyone in a relationship or would one day like to be in a relationship.

The premise is simple. We have been socialized to believe that when you love someone monogomy should come naturally and easily. However, the facts bear out a different reality. I have seen statistics that indicate 80% of married men report cheating on their wives and 50% of
...more
Jess
Jun 24, 2011 rated it did not like it
From the very start, the authors set the stage of this standard (and wrong) view of human sexual evolution and sexuality and their radical alternative. Unfortunately, although they manage to refute some commonly held misconceptions, none of these startling revalations seem like they would be a surprise to anyone in the fields of primatology, anthropology, evolutionary biology, evolutionary psychology, etc. They also do very little to present a positive argument although to be quite honest by the ...more
shakespeareandspice
It was difficult to take this book as seriously because of the snarky little tone this book has—which honestly needn’t be there. I realize this is coming from someone who already thinks of science as fascinating and doesn’t need the lighter tone to keep things interesting but honestly, this book has too much attitude. It lacks a level of professionalism that, if I’m going to read an informative book about the science of sex, needs.

Part of why I bring this is up is also because the only other boo
...more
Erica
Jan 16, 2012 rated it liked it
Shelves: psychology
I heard Ryan interviewed on the podcast "Sex Nerd Sandra", was intrigued by his novel ideas, and decided to pick up the book. The overarching argument is that men and women were not historically monogamous the way society and many scientists claim. They back up this with physical and behavioral evidence from our close cousins, the chimp and bonobo, and from the information we have about prehistoric human societies and existing hunter-gatherers.

The authors are also somewhat avowed neo-Rousseauns
...more
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