Study: Monogamy arose thanks to males with poor fighting skills
His number-crunching found that these factors alone were not enough to move a species away from promiscuity. The models did work, though, with a few adjustments.
First, he stopped assuming that all males would act the same. Instead, he tested what would happen if only the low-ranking males in the group offered food to females in return for mating opportunities. These weaker males had less to lose by switching strategies because they wouldn’t get very far through fighting anyway.
The other key change was realizing that these low-ranking males would select faithful females.
“When I factored those things in, then things start to happen with the formation of pair bonds,” Gavrilets said. Pair-bonding ultimately swept through almost the entire group.









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Actually it had more to do with men wanting to keep their balls.
CW on May 29, 2012 at 10:44 PM
FIFY
sadarj on May 29, 2012 at 10:49 PM
Ummm … that’s probably a factor. But I think it hard more to do with long childhoods.
Although “rose” is relative … since, literally, only one third of our ancestors are men, two thirds women.
Which doesn’t sound like exclusive monogamy to me!
Mitchell Heisman on May 29, 2012 at 10:50 PM
The only thing for certain is that this study arose thanks to males with poor fighting skills.
karlant on May 29, 2012 at 10:54 PM
Translation: In order to get the results I wanted, I needed to change the value of independent variable y. There’s no real justification for the change, but I’m hoping that if I say “I realized that the value of y would be different” with enough confidence, no one will ask any uncomfortable questions.
sadarj on May 29, 2012 at 10:56 PM
If only all the males had just graduated harvard, written 1905 page missives and then been selfish.
tom daschle concerned on May 29, 2012 at 10:59 PM
Seriously, though, the entire field of evolutionary psychology is nothing more than a collection of scientific-sounding “just-so” stories.
Since our distant ancestors are no longer alive to actually, you know, study, we end up with nonsense like this.
I’m sure that with enough time, I could come up with any number of plausible explanations for the development of monogamy. And after studying mathematical modeling for a while, I could probably find a way to replicate these results for any one of them. Best of all, no one could ever prove me wrong! “No prehistoric hominids were available for comment on this study.”
sadarj on May 29, 2012 at 11:03 PM
No. Monogamy arose in our current culture due to Pope who got tired of all the drama associated with estate settlements where someone died with multiple wives. Even after it was decreed that there be only one official marriage, the notion of concubines and mistresses continued for centuries. Polygamy wasn’t outlawed in France until the 1990′s, in fact. Human beings never have been particularly monogamous. But the real factor is that average duration of a marriage today is almost exactly the same as it was in the 1500′s … about 10 years. Only back then one or the other spouse was likely to die within that time period. A person who lived to be old (in their 70s) had most likely had two or more wives in that time. These days the expectation of some is that a marriage would last 50 or 60 or more years. That has never been the case in all of human history until the past 80 years or so.
When Charlemagne was crowned by the Pope as Emperor of the Romans in AD 800, he had anywhere from 4 to 10 wives according to who you read. Which were wives and which were concubines is in a bit of a dispute but he had a large house with 20 children.
It was the Puritans who gave us the notion that even concubines and mistresses were “wrong”. Europe continued with that tradition until only very, very recently (as in the last 50 years) and it is still practiced today albeit very quietly. Concubines have legal rights in much of Central and South America. Many of the wives of the miners stuck for weeks in a mine in Chile met the concubines of their husbands for the first time at the mine.
crosspatch on May 29, 2012 at 11:07 PM
As if one isn’t enough. I mean, really, how much food has one got to spare?
OldEnglish on May 29, 2012 at 11:13 PM
Because they actually read their Bible.
Logus on May 29, 2012 at 11:16 PM
crosspatch on May 29, 2012 at 11:07 PM
You actually have a very good point that I overlooked. Why look to prehistoric hominids (or what a 21st century mind thinks prehistoric hominids would have been like) when the evidence shows that monogamy (as a cultural norm) is a very recent development? Why not study the writings and records of people living in a society transitioning from polygamy to monogamy? I would think that that would give much more reliable insights into the impetus for such a change. Then again, it’s probably beyond the area of expertise for these scientists. After all, it’s not like they’re psychologists.
sadarj on May 29, 2012 at 11:19 PM
If you guys are right that monogamy is a relatively recent invention… I say we stop our state sponsored bigotry on polygamists! /GayRightsAdvocate, am I right?
MeatHeadinCA on May 29, 2012 at 11:35 PM
Wait, that argument only makes sense if America is a Christian nation?!
MetaThought on May 29, 2012 at 11:51 PM
This.
John the Libertarian on May 29, 2012 at 11:56 PM
“Your wife, your daughters,… I want to buy them. Sell me your women!”
/s Blues Brothers
Boogeyman on May 30, 2012 at 12:14 AM
It’s whatever you want it to be to win a propaganda war.
MeatHeadinCA on May 30, 2012 at 12:17 AM
Can’t argue that!
More seriously, a “collection of scientific-sounding ‘just-so’ stories” may be the single best description I’ve ever heard of the speculation that gets treated like science that is often called evolutionary psychology.
Who needs the scientific method? Just postulate till you come up with something plausible, then everybody will have to accept it as “science” and therefore fact. It’s not like you can be proven wrong.
There Goes The Neighborhood on May 30, 2012 at 12:40 AM
I hear historically, the eldest wife keeps the rest in line.
MetaThought on May 30, 2012 at 12:40 AM
Sure because pecking order and an abundance of independent minded females had nothing to do with it.
Speakup on May 30, 2012 at 12:56 AM
Nah, it just got to the point that one is trouble enough.
arnold ziffel on May 30, 2012 at 1:06 AM
Where was the Pope when Jesus said this?
That predates any pope you want to name. How did the pope institute monogamy, when Paul wrote this?
And again,
Obviously, the Pope didn’t just invent monogamy to make his life simpler.
I don’t know why you try to use kings as an example, anyway. As men of wealth and power, they obviously had far more ability to ignore social mores and standards than the rest, which makes them bad examples.
The Puritans were hardly the first to reject concubines and mistresses. That’s been a feature of Christianity from the first. Rather, there were those who ignored Christian morals to go their own way. As if that’s a surprise.
There Goes The Neighborhood on May 30, 2012 at 1:12 AM
Doubleplus good, comrade!
The ‘scientist” was able to degrade the institution of monogamous marriage by designating it the result of a deficiency —and a deficiency in men to boot. He gets two liberal thumbs up for that.
claudius on May 30, 2012 at 1:25 AM
And they say food is a way to a man’s heart. LOL.
LazyHips on May 30, 2012 at 3:05 AM
Guessing the “scientist” that did this study is a nerdly one and trying to justify why he can not get a date…
albill on May 30, 2012 at 6:30 AM
Psychiatrists/psychologists: Charlatans and fools making up knowledgeable-sounding crap to be ultimately dis-proven by the next batch of charlatans and fools.
SKYFOX on May 30, 2012 at 6:54 AM