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Why Do Genes Suggest Most Men Died Off 7,000 Years Ago?
Live Science ^ | June 6, 2018 | Yasemin Saplakoglu

Posted on 06/20/2018 12:59:12 PM PDT by SunkenCiv

Modern men's genes suggest that something peculiar happened 5,000 to 7,000 years ago: Most of the male population across Asia, Europe and Africa seems to have died off, leaving behind just one man for every 17 women.

This so-called population "bottleneck" was first proposed in 2015, and since then, researchers have been trying to figure out what could've caused it. One hypothesis held that the drop-off in the male population occurred due to ecological or climatic factors that mainly affected male offspring, while another idea suggested that the die-off happened because some males had more power in society, and thus produced more children.

Now, a new paper, published May 25 in the journal Nature Communications, offers yet another explanation: People living in patrilineal clans (consisting of males from the same descent) might have fought with each other, wiping out entire male lineages at a time.

That ratio of 17 females for every one male "struck us as being very extreme, and there must be another explanation," said senior study author Marcus Feldman, a population geneticist at Stanford University in California. According to their new explanation, the male population didn't take a nosedive, but rather the diversity of the Y chromosome decreased due to the way people lived and fought with each other. In other words, there weren't actually fewer males, just less diversity among the males.

(Excerpt) Read more at livescience.com ...


TOPICS: History; Science; Travel
KEYWORDS: agriculture; animalhusbandry; epidemics; godsgravesglyphs; helixmakemineadouble; huntergatherers; pandemics; plagues; thesniffles
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To: donna

That the sons of God saw the daughters of men that they were fair; and they took them wives of all which they chose.

Genesis 6:2


21 posted on 06/20/2018 1:11:12 PM PDT by treetopsandroofs
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To: SunkenCiv

Wars...................lots of wars...............


22 posted on 06/20/2018 1:11:27 PM PDT by Red Badger (When Obama and VJ go to prison for treason, will Roseanne get her show back?...)
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To: SunkenCiv

What’s the population of female lions to male lions in the wild? Approximately 3:1. What’s the population of female deer to male deer in the wild? Approximately 5:1.

Why wouldn’t the same hold true with nomadic humans?


23 posted on 06/20/2018 1:11:38 PM PDT by Yo-Yo (Is the /sarc tag really necessary?)
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To: E. Pluribus Unum

“World War I pretty much wiped out the men of native families in Great Britain. Entire towns lost all their men.”

Lincoln’s war didn’t help the states either.


24 posted on 06/20/2018 1:12:19 PM PDT by Bonemaker (invictus maneo)
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To: Hischild
Something to think about -- since this took place a thousand years before the Earth existed.

25 posted on 06/20/2018 1:12:39 PM PDT by SunkenCiv (www.tapatalk.com/groups/godsgravesglyphs/, forum.darwincentral.org, www.gopbriefingroom.com)
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To: SunkenCiv

“There must be another explanation”
So give me a bazillion $$$$$$$ grant and I will find the explanation. Even if I have to make one up.


26 posted on 06/20/2018 1:14:27 PM PDT by certrtwngnut (4- Do something,,,,even if it's wrong.)
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To: Two Kids' Dad

“Modern men’s genes suggest that something peculiar happened 5,000 to 7,000 years ago”

That’s when they first invented marriage.


27 posted on 06/20/2018 1:14:27 PM PDT by Bonemaker (invictus maneo)
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To: donna

Not very exact, and irrelevant, since this is about someting that happened 7000 years ago.


28 posted on 06/20/2018 1:14:45 PM PDT by SunkenCiv (www.tapatalk.com/groups/godsgravesglyphs/, forum.darwincentral.org, www.gopbriefingroom.com)
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To: Gamecock
Why Do Genes Suggest Most Men Died Off 7,000 Years Ago?

Why did they die? Because they wanted to.

29 posted on 06/20/2018 1:14:59 PM PDT by dfwgator (Endut! Hoch Hech!)
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To: SunkenCiv
"[Strangelove's plan for post-nuclear war survival involves living underground with a 10:1 female-to-male ratio]

General "Buck" Turgidson:

"Doctor, you mentioned the ratio of ten women to each man. Now, wouldn't that necessitate the abandonment of the so-called monogamous sexual relationship, I mean, as far as men were concerned?"

Dr. Strangelove:

" Regrettably, yes. But it is, you know, a sacrifice required for the future of the human race. I hasten to add that since each man will be required to do prodigious... service along these lines, the women will have to be selected for their sexual characteristics which will have to be of a highly stimulating nature."

Ambassador de Sadesky:

" I must confess, you have an astonishingly good idea there, Doctor. "

30 posted on 06/20/2018 1:15:52 PM PDT by central_va (I won't be reconstructed and I do not give a damn)
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To: SunkenCiv

31 posted on 06/20/2018 1:16:50 PM PDT by fishtank (The denial of original sin is the root of liberalism.)
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To: SunkenCiv

Hah, I remember seeing this a few weeks ago. The scientist thought it was due to a large scale, long term war... but this time period men were not thought to have learned to ride horses yet. How could a non-riding, non-seafaring Asia/Africa/Middle East population wage any kind of effective war?

I would say its more likely that this was the result of the great flood. Here we have 1 father and 3 sons with a few women of different families as wives. That sure would cause a bottle neck and could explain such a vast die off of males.


32 posted on 06/20/2018 1:17:16 PM PDT by VaeVictis (~Woe to the Conquered~)
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To: Bonemaker

...and heart attacks. Why did all the men die off? Because they wanted to.


33 posted on 06/20/2018 1:17:17 PM PDT by Bonemaker (invictus maneo)
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To: Two Kids' Dad

“One man for every 17 women is every man’s dream... or every man’s nightmare if their menstrual cycles are aligned.”

Like a barracks of female recruits?


34 posted on 06/20/2018 1:18:46 PM PDT by Bonemaker (invictus maneo)
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To: babble-on
City-states had large standing armies precisely because they had agricultural surplus. As is usual and understandable, the real estate was owned by older men. The women were traded like baseball cards to keep the landowners tied to each other and to some extent to the ruling regime, but there were no other marriage prospectes without that. Sons who survived and/or distinguished themselves in battle disproportionately acquired the inheritance. They continued the pattern, and everyone was on board. Not all got served.

35 posted on 06/20/2018 1:21:04 PM PDT by SunkenCiv (www.tapatalk.com/groups/godsgravesglyphs/, forum.darwincentral.org, www.gopbriefingroom.com)
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To: SunkenCiv

I consider myself an avid reader of science and historical subjects. And in all my years I have never come across this story.

So in 3,000 BC to 5,000 BC there was a mass “killing off” of men?

Astonishing!


36 posted on 06/20/2018 1:22:09 PM PDT by airborne (I don't always scream at the TV but when I do it's hockey season!)
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To: SunkenCiv

Now if you back out geeks, democrats, homosexuals (some overlap here), snowflakes, draft dodgers etc, there is one GOOD man per 17 females.


37 posted on 06/20/2018 1:22:29 PM PDT by Bonemaker (invictus maneo)
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To: central_va

General "Buck" Turgidson: Doctor, you mentioned the ratio of ten women to each man. Now, wouldn't that necessitate the abandonment of the so-called monogamous sexual relationship, I mean, as far as men were concerned?

Dr. Strangelove: Regrettably, yes. But it is, you know, a sacrifice required for the future of the human race. I hasten to add that since each man will be required to do prodigious... service along these lines, the women will have to be selected for their sexual characteristics which will have to be of a highly stimulating nature.

38 posted on 06/20/2018 1:22:38 PM PDT by Repealthe17thAmendment
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To: Bonemaker

That is also right after people started farming. Being a hunter-gatherer likely means that you don’t have to stay in one place, you can move on when you encounter a-holes. Being a farmer means that you have to sit long winters in a house with your extended family for company and you have to navigate setting up rules for where people get to poop, which is a fraught and contentious issue to this day in many families.


39 posted on 06/20/2018 1:24:01 PM PDT by BlackAdderess (It's morning in America)
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To: SunkenCiv

Created a vicious self-reinforcing feedback loop:

http://news.ubc.ca/2012/01/23/monogamy-reduces-major-social-problems-of-polygamist-cultures/


40 posted on 06/20/2018 1:24:34 PM PDT by ameribbean expat
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