Along Came Poly(andry): There Are Certain Men Who Have To Time-Share A Spouse, And It Isn't The Alpha Males
Just to get this out of the way: Polyandry is when a woman has more than one hubby. Polygyny is when a man has more than one wife.
Polygyny is far more common than polyandry across cultures, explains evo anthro student @Evolving_Moloch in yet another interesting post. He likewise explains that there's a certain kind of man who has to go halfsies on a wife:
For the 53 cases of polyandry reviewed by Starkweather & Hames, polyandry generally seems to be a reproductive strategy mostly used by lower status males, likely as a last resort. They write that, "less socially competitive males may be willing to share a wife and make an attempt at achieving paternity, rather than risk never reproducing."Among various Inuit societies, "Exceptionally great hunters are able to support more than one wife; good hunters can support one wife; and mediocre hunters, or those unwilling or unable to take a wife from another man, share a wife." As we can see, polygyny and polyandry can co-occur, and where some competent, high-status males are able to support multiple wives, lower-status males may end up having to share, or risk having no wife at all.
In such contexts, women can also benefit from multiple partners, gaining protection and provisioning from their additional husband(s), particularly when their first husband is likely to die early or be absent for long periods of time.
A pre-modern life insurance policy!
And consider how societal sex ratios can lead to polyandry:
Polyandry in many societies may be a temporary response to a highly skewed sex ratio in favor of men. For example, Starkweather & Hames write that, "10 of 15 marriages were polyandrous in 1958 among the Shirishana Yanomamö when the sex ratio was 149 [149 men for every 100 women]. As the population grew and the sex ratio declined to 108, however, only 1 of 37 marriages were polyandrous."
By the way, as he notes, "an individual male likely faces a greater cost to his reproductive success by sharing a mate than an individual female does."
Research on this comes from Katherine Starkweather and Ray Hames. Here's some.
Sex ratos, by the way, are found to have big effects on behavior, like on how willing women are to have casual sex. The ratio increasingly on campus -- a lot of women to fewer men -- makes it a buyer's market for the man looking to hook up.








In 2015, male to female ratio for China was 106.27 males per 100 females.
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In the province of Shandong, in eastern China, the child sex ratio skewed early and drastically. It was highly unbalanced by 1990, and by 2010 had reached 123:100.
Crid at March 29, 2018 5:42 AM
Why are we spending so much time on beta males? That's two posts within a short period of time.
A society with a heavily unbalanced a ratio of men-to-women is a society headed for trouble - as it will have to occupy those men somehow, whether economically or militarily.
Conan the Grammarian at March 29, 2018 6:52 AM
You're right, Conan. And I just thought this was a very interesting post from Will/@Evolving_Moloch.
Amy Alkon at March 29, 2018 7:43 AM
Indeed it is. I'm fascinated by cultures that fall outside what seems to be a worldwide norm - matriarchies, polyandry, etc.
That said, I could never share a wife.
I just didn't know if we were hitting on a theme here to illustrate something or if it was just two interesting articles found in a short period of time, perhaps while you were doing some research, and you decided to share them both.
Conan the Grammarian at March 29, 2018 7:50 AM
Men tend to be really, really are unwilling to share a wife unless it's no pussy or half a pussy.
Amy Alkon at March 29, 2018 8:09 AM
There are a lot of big issues with China right now. The high gender ratio is significantly responsible with their urge to conquer their neighbors. All the nations around them are nervous. There is also the issue that China can't maintain their current rate of GDP growth. 7-15% is only possible if you are parasiting off of a larger economy. After Mao more or less wiped out the Chineese economy this wasn't an issue. But today China has gotten too big to maintain that growth just from US imports. So the Chineese are rather angry about the poorer nations near them 'stealing our jobs'. This is also leading to political instability in China. After all the old agreement was the pols gave people jobs and wealth and they stayed out of politics. If the pols can't keep up their end of the bargain then the people don't see any reason to keep up their's. Especially given how much corruption is going on.
Ben at March 29, 2018 8:10 AM
Men tend to be really, really are unwilling to share a wife unless it's no pussy or half a pussy.
As long as you don't have to share at the same time...
Wut?
I R A Darth Aggie at March 29, 2018 8:50 AM
"...polyandry generally seems to be a reproductive strategy mostly used by lower status males, likely as a last resort. They write that, "less socially competitive males may be willing to share a wife and make an attempt at achieving paternity, rather than risk never reproducing."
I'm sure that is very, very evolutionary and true. But I don't think I've ever known a man - alpha, beta, gamma or even omega - who desired to achieve paternity and was willing to share a wife.
I've known a couple of men, and heard of many more, who were deceived into believing they had achieved paternity by a wife they didn't know was polyandrous. A guy I worked with in the oilfields a few decades ago, happily married with three kids, got a vasectomy and almost two years later his wife achieved maternity. One day I asked him, "Hey there, John D, how is it your wife's pregnant when you've been neutered?" (We used to make fun of him like that by saying he was neutered). He said it was just one of those rare things that happens sometimes. The rest of us guys kind of suspected there was a little covert polyandry going on behind his back. By the time the new baby boy was about a year old and turning into the spitting image of another guy who worked in that same oilfield, old John D finally put 1 and 1 together and came up with 3, and that marriage hit the rocks. He wasn't willing to share.
I've known a lot of men who had no desire to achieve paternity, and no desire to have a wife, or even half a wife, but did have a very strong desire to have sex with women, polyandrous or otherwise. Another guy I worked with in the oilfields even admitted that he participated in a consensual, simultaneous polyandric event (a.k.a. a gang bang (yuk!)). But even he, primitive as he was, took measures to avoid achieving paternity.
It's interesting how these activities are driven by a highly evolved instinct to reproduce, but many men who have no desire to achieve paternity still want to participate in the activities. On the surface it looks like they just want to have sex.
Ken R at March 29, 2018 11:31 AM
While gainfully employed and law abiding betas have to share a pussy, killers get sent unsolicited nude pics -
http://www.foxnews.com/us/2018/03/29/parkland-suspect-nikolas-cruz-showered-with-fan-mail-donations-report.html
Snoopy at March 29, 2018 2:09 PM
It's called Hybristophilia. The Daily Mail did a story on it.
Conan the Grammarian at March 29, 2018 2:27 PM
Ken R, here's something from the National Review:
https://www.nationalreview.com/magazine/2018/03/15/why-are-men-violent-science-society/
...These studies don’t describe how all women choose their mates; they simply show a bell curve of preference for aggression and dominance. (And women use many criteria for selecting a mate — including, apparently, “storytelling ability.” Nature (journal) reported in 2017 that good raconteurs father disproportionately more children among the Agta, a hunter-gatherer population in the Philippines.) But on average, dominant, high-testosterone males regularly out-compete subordinate males for sexual opportunities. That creates a problem, though: Men who are hormonally predisposed to violence make great warriors but dangerous partners and fathers. To counteract that threat, men experience a significant drop in testosterone when they become fathers — and even when they hold a child. Female preference for high-testosterone males, coupled with a drop in male aggression around children, may be an evolutionary balancing act that allows the maximum number of children to survive...
(end)
Well, that might explain why many men in their 20s and 30s just don't want kids - with or without the complications of marriage.
lenona at March 29, 2018 3:39 PM
"There are a lot of big issues with China right now. The high gender ratio is significantly responsible with their urge to conquer their neighbors. "
And traditionally, the way a government handles excess men in a society is to send them off to war. This solves the problem in two ways: most of them get killed, but if they win, the survivors get to claim the women of the conquered territory.
"As long as you don't have to share at the same time..."
Well, there's always DP...
Cousin Dave at March 29, 2018 6:15 PM
Hmm.. A relative told me once that this problem was primarily caused by the mother in law. Whenever a girl was born, she would sneak at night and drown the baby in hopes that the next birth would be a boy.
This happened back then -Second to third quarter of the 20th century- because in those times, arranged marriages were the norm, and the girls would leave the father's family household, while the boys would marry, and remain to help with the farm/businesses.
Sixclaws at March 29, 2018 6:42 PM
Wow, talk about the evil m-I-l. I can’t imagine being around the woman allowing my future sons to stay around and help her.
Anyhow, nowadays serial monogamy is often the norm. I wonder how it would work out if there was polygyny and polyandry at different stages of a marriage.
I remember thinking that I wouldn’t mind it if my husband took on another wife when our children were small. My husband was working 90 hours per week and was very demanding. I could have used the help and the company. She could have also given attention to my husband. Frankly, after working all day and having children crawl all over my when I wasn’t working, I was touched out. I was exhausted and my health was faltering. Our resources were ample.
Later, when my children were grown, I really came into my own. I felt great and was being hit on right and left. Young men told me that they wanted to either just play or focus on building s career. The women their age were either just silly or focused on the biological clock and lining up marriage and children.
I suppose it could get pretty complicated if everyone stuck around. Some arrangements might work. When the younger man settled down, the older woman get be kind of a grandmother and help with the kids. If my husband had taken another wife, we could have helped her through school. I don’t think that I would have liked the younger wife to bring kids into the marriage because that would have been a strain on our resources. Yes, it could all get really complicated and we would have had to end up in some kind of compound.
Jen at March 30, 2018 4:17 AM
You are describing open marriage and swinging Jen. We've had that for over 50 years. And yes it usually is complicated and doesn't work out well.
Ben at March 30, 2018 6:36 AM
lenona said "To counteract that threat, men experience a significant drop in testosterone when they become fathers — and even when they hold a child." The female hormones affect male hormones. This is a way for the woman to tame her mate a little and get him to stick around. This is also part of why men become a little pudgy after a few years of marriage: it isn't the home cooking guys, she is reducing your testosterone.
cc at March 30, 2018 11:46 AM
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