ERIC MICHAEL JOHNSON
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"If the misery of the poor be caused not by the laws of nature, but by our institutions, great is our sin."
- Charles Darwin
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Aug 21, 2007

The Origins of Forbidden Love

Sexual equality, double standards and social scale



In my article Eye of the Beholder I described the latest study demonstrating that women tend to be most likely to cheat on their partners in heterosexual relationships when they’re at the most fertile phase of their menstrual cycle.

In response Paul asked the question:

As you point out, these findings are consistent with the well supported notion that women (along with men) evolved more than one reproductive strategy. What puzzles me is why societies are more forgiving of the male who "cheats" than of the female who "cheats" -- a double standard that seems almost ubiquitous?

This double standard has not only been ubiquitous, it has been downright murderous in its application throughout history. However, this is not the case in every society. There is something very specific about which societies consistently demonstrate this double standard and which don’t.

In many indigenous societies sexuality is considered a healthy activity and marriage is a flexible social arrangement that can be initiated or terminated by either sex. For example, among the Vanatinai people of the New Guinea Highlands, Lepowsky (1990:190) writes “sexual activity is regarded as a pleasurable activity appropriate for men and women from adolescence to old age.” Divorce may be initiated by either husband or wife, and is most frequently the result of laziness on the part of the husband or because of the wife’s infidelity. However, infidelity is apparently common enough that Vanatinai marriage rules make any children born to outside fathers the husband’s kin.

This is mirrored among the Australian Aborigines of the Darwin Hinterland. Sansom (1978:100) found that “marriage does not stand for the containment of sexuality within the relationship. It is expected that all husbands and all wives will want lovers.” However, an infidelity that becomes too serious and involves economic favors can frequently lead to bitter argument or divorce.


Yanomami Woman. In many indigenous societies women's sexuality
is not controlled based on male interest.


Even among the Yanomamo, a group regarded as the definitive example of a traditional society in which a man’s dominance status correlates with his reproductive success (high ranking men have multiple wives, low ranking men are bachelors), the picture is not as clear as some would like to believe. Anthropologist John Peters contacted the Shirishana Yanomana during a period when there was a shortage of women and found there were nine polyandrous marriages (one woman with several men) and five monogamous ones (Peters & Hunt 1975).

This flexibility of monogamy and the sexual freedom among many indigenous women today was likely a condition for indigenous groups in the past. As demonstrated by the Montagnais of Northeastern Canada in the 1600s, French Jesuit Paul le Jeune reported with consternation that:

“The inconstancy of marriages and the facility with which they divorce each other, are a great obstacle to the Faith of Jesus Christ. We do not dare baptize the young people because experience teaches us that the custom of abandoning a disagreeable wife or husband has a strong hold on them” (Leacock 1981:50).

Likewise, polygamy (marriage to many partners) was another right that women and men took for granted and which the Jesuits weren’t able to convince the Montagnais to abandon. Perhaps the most telling difference between the sexual standards of indigenous and Western societies came when a Montagnais man objected to le Jeune’s preaching. According to le Jeune:

“I told him that it was not honorable for a woman to love any one else except her husband, and that this evil being among them, he himself was not sure that his son, who was there present, was his son. He replied, 'Thou hast no sense. You French people love only your own children; but we all love all the children of our tribe.'"


The Montagnais of Northeastern Canada demonstrated greater sexual
equality as reported by missionary Paul le Jeune in the 1600s.


In contrast to tribal societies, the rise of states and the development of religious law initiated a starkly different vision for women’s sexual choices. Judaism, Christianity, Islam and Hinduism each share a fundamental concern over the punishment for a woman’s sexual freedom. Whereas any “man that committeth adultery with another man’s wife [both] the adulterer and the adulteress shall be put to death,” (Leviticus 20:10) any unmarried woman who has sexual relations with an unmarried man shall be brought “to the door of her father’s house, and the men of her city shall stone her with stones that she die” (Deuteronomy 22:21).

In fact, the only sexual relationship outside of marriage that does not end in death for the woman is in the case of rape. In that event, if the woman is married, “the man only that lay with her shall die” but, if she is a virgin, “the man that lay with her shall give unto the damsel’s father fifty shekels of silver, and she shall be his wife; because he hath humbled her” (Deuteronomy 22:25-29). The main interest in all of these cases is the paternal interests of kinship and never the interests of the woman in question.


Iranian woman symbolically protests the penalties
imposed by Islamic law for women's sexuality, a
reality common in the history of most religions.


The Bible views women as being half as valuable as men, which is directly comparable to the Qu'ran. There are also direct parallels in punishing women's sexuality. For example, there is no punishment for men in the event of rape except under the categories of "adultery or fornication." In which case “scourge ye each one of them with a hundred stripes. And let not pity for the twain withhold you from obedience to Allah” (Surah 24:2). However, if a married or unmarried woman is “guilty of lewdness,” which Ali (2003:189) defines as adultery or fornication, “confine them to the houses until death take them or until Allah appoint for them a way [flogging for fornication and stoning for adultery]” (Surah 4:15).

The Manu Smriti, the most authoritative books of the Hindu code, or dharma, proscribes that “When a woman, proud of her relations or abilities deceives her husband with another man, then the king should ensure that she be torn apart by dogs in a place much frequented by people.” (Manu VIII:371). Such punishment is necessary because “It is the nature of women to seduce men in this world; for that reason the wise are never unguarded in the company of females” (Manu II:213). The Artharva Veda dictated that if a woman was found guilty of a carnal crime her generative organs were to be cut off and she was ultimately sentenced to death (Arth IV:13).

This stark contrast between indigenous and state societies can be understood as power relationships between the sexes that change as the result of social scale. Anthropologist John Bodley (who I’ve had the pleasure of working with directly) wrote in his groundbreaking work The Power of Scale that:

“The size of human societies and cultures matters because larger societies will naturally have more concentrated social power. Larger societies will be less democratic than smaller societies, and they will have an unequal distribution of risks and rewards” (Bodley 2003:54).

As I touched on in an earlier post (The Evolution of Metapopulations and the Future of Humanity), the invention of agriculture and the subsequent choice by some societies to remain sedentary lead to the unequal accumulation of private goods and the need for a ruling elite to mediate property disputes. This ruling elite frequently identified themselves as an embodiment of the state itself (and often with divine authority). While smaller scale societies would manage any dispute or crime communally, state level societies defined all crimes as crimes against the state (for example, hunting wild deer on the King’s land would be construed as “poaching the King’s deer”).

Males of most species use their larger physical size, or sexual dimorphism, to increase their reproductive success. But females generally have opposing strategies when their reproductive interests are different. Whereas indigenous societies are often more egalitarian, early state level societies codified human sexual dimorphism into law and viewed paternity rights in the same category as property rights because inheritance was of greater concern. With the power of the state to punish any violation of the law, women were relegated to the status of chattel and their sexual choices were constrained by the threat of capital punishment. It has only been with the rise of secular democracies, and the reduction of religious authority, that women have begun to reclaim their sexual freedom. The last thirty years has seen the largest rise in women’s economic and social power in human history (mostly confined to the West). It’s not coincidental that women have also seen the greatest freedom from sexual coercion and control during this same period. There is a great deal of work that needs to be done and, at the same time, there are still strong proponents in favor of moving backwards.


Which culture is more guilty of imposing sexual roles on women?

While greater female sexual equality doesn’t exist in every indigenous society, it would appear that social and environmental factors are crucial. Likewise, as David Schmitt reviewed in his analysis of 48 countries, environmental influences such as the ratio of men to women are strong predictors of sexual dynamics (Schmitt 2005). As Schmitt also reported, most women prefer stable monogamous partnerships. Sexual equality means a woman's right to enter and leave relationships with the same freedom as men. So we shouldn't confuse sexual equality with promiscuity. One could make the argument that, whereas many women in the Middle East and North Africa are subject to one form of patriarchal control and denied sexual equality, women in the West are subject to another form and are made to feel like they must be sexual objects for male gratification.

So, I would argue, the double standard we witness today is actually a cultural holdover from this long tradition of patriarchy. While it may have gotten its start as the result of our evolutionary history (males being larger than females) it has been exaggerated and enforced as the result of male-dominated cultural practices. However, this condition is by no means permanent.


References:

Ali, A.Y. (2003). The Meaning of the Holy Qur’an. Amana Publications, Beltsville, Maryland.

Bodley, J.H. (2003). The Power of Scale: A Global History Approach. M.E. Sharpe. New York.

Leacock, E. (1981). Myths of Male Dominance. New York: Monthly Review Press.

Lepowsky, M. (1990). Gender in an egalitarian society: a case study from the coral sea. In Beyond the Second Sex: New Directions in Anthropology of Gender. Sanday, P.R. & Goodenough, R.G. (eds). University of Pennsylvania Press, Philadelphia.

Peters, J.F. & Hunt, C.L. (1975). Polyandry among the Yanomana Shirishana. Journal of Comparative Family Studies 6:197–207.

Sansom, B. (1978). ‘Sex, age, and social control in mobs of the Darwin hinterland’, in J.S. La Fontaine (ed.), Sex and Age as Principles of Social Differentiation, Academic Press, London.

Schmitt, D. (2005). Sociosexuality from Argentina to Zimbabwe: A 48-nation study of sex, culture, and strategies of human mating. Behavioral and Brain Sciences 28:247-311.



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Aug 20, 2007

Move Over MTV, Science Just Went Live

SciVee brings the latest science to your desktop



John Hawks just brought this to my attention. This looks incredibly cool and is just getting started. Following up on the Public Library of Science public domain journals, now scientists can upload videos presenting their cutting edge research at a free online conference.

As they explain at the SciVee website:


SciVee, created for scientists, by scientists, moves science beyond the printed word and lecture theater taking advantage of the internet as a communication medium where scientists young and old have a place and a voice.

The only hitch, as of now, is that you have to be published in one of the PLoS journals in order to upload your video presentation. Nonetheless, this is just one more way that science can be made more accessible to the public. Of course, now that our conference presentations will reach an audience larger than 30 we'll have to seriously work on our public speaking skills.


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A Three Million Year Walk Through Egypt

New hominid footprint has Intelligent Design advocate stumped


Zahi Hawass_________________Cast of fossilized footprint________

This is very confusing. The Scubaredneck (seriously, that's his name) writing at Uncommon Descent posted this article about a new fossil footprint in Egypt that might be older than the earliest evidence of Australopithecus afarensis. But he just posted the story as is from Reuters. Did he forget to inject his Intelligent Design message to show they’d predicted this all along? Is there something significant about Egypt having evidence of hominids earlier than Ethiopia? Are they changing their tactic to suggest that evolutionary anthropologists have been too conservative in their estimates about the age of A. afarensis? I really don’t understand why this would be posted on William Dembski’s page. Can someone explain it to me?

CAIRO (Reuters) - Egyptian archaeologists have found what they said could be the oldest human footprint in history in the country’s western desert, the Arab country’s antiquities’ chief said on Monday.

“This could go back about two million years,” said Zahi Hawass, the secretary general of the Egyptian Supreme Council of Antiquities. “It could be the most important discovery in Egypt,” he told Reuters.

Archaeologists found the footprint, imprinted on mud and then hardened into rock, while exploring a prehistoric site in Siwa, a desert oasis.

Scientists are using carbon tests on plants found in the rock to determine its exact age, Hawass said.

Khaled Saad, the director of prehistory at the council, said that based on the age of the rock where the footprint was found, it could date back even further than the renowned 3-million year-old fossil Lucy, the partial skeleton of an ape-man, found in Ethiopia in 1974. (emphasis added by The Scubaredneck)

He probably thinks that Reuters' use of the word "human" means modern humans. I can see him grinning with excitement as he posted the story. If only a dinosaur footprint had been just next to it he might have had an aneurysm.

In all seriousness, the indentations at the heel and big toe are consistent with the footprints from Laetoli and could be further evidence of early hominid bipedalism. This would provide additional evidence that our ancestors walked upright before large brains had evolved. However, the assessment that this dates from earlier than 3 million years ago was based purely on one person's interpretation prior to a full analysis (notice how there were two age estimates in the same article), so I look forward to this evidence being presented in a journal. Because, unlike the Intelligent Design advocates, I don’t take random media clips as evidence for anything.



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Two More Gorillas Found Dead

Good news of baby Ndeze's success marred by tragedy



Earlier this week I linked to a story showing that the baby of one of the four murdered gorillas (one of whom was also pregnant) is currently in stable condition. Yesterday conservationists in eastern Democratic Republic of Congo discovered the remains of two more adult gorillas with one of their infants almost assuredly lost as well. This brings the death toll to nine this year. As I highlighted before, with only 700 mountain gorillas alive in the wild the loss of these individuals now represents the equivalent of 85 million people, or the entire population of Germany.

According to Reuters:

"Effectively, this means that not only are there six that are now dead, but there will now be a group of 12 gorillas that may not carry on into the next generation, said Gerard Collin, a consultant with the UNESCO team.

So far this year, nine mountain gorillas have been killed in North Kivu.

Two adult males, known as silverbacks because of their grey colouring, were killed and eaten by rebels living off the land.

A third, a female, was shot in the back of the head in what conservationists said was an "execution-style" killing. Rangers found her baby clinging to her body, suggesting she was not killed for bush meat or the lucrative trade in primate infants.

Some conservationists say they suspect the killings are linked to a power struggle between local government agents trying to save Virunga, Africa's oldest national park, and those engaged in the illicit trade in charcoal made from its trees.

For those of you able to help, donations can be sent to the Diane Fossey Gorilla Fund.


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Aug 19, 2007

Point of Inquiry with Chris Mooney



ScienceBlogger Chris Mooney (The Intersection) is featured in the latest interview at Point of Inquiry. His book Storm World, centers on the increasingly large storms that we can expect as a result of the climate crisis and the political forces that are opposing policy change.


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Ever Considered Being an Evangelical Atheist?

From John Safran vs God

For those of you who haven't heard of Australian comedian John Safran, this bit where he travels to Utah to inform Mormons about the good news is not to be missed.




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A Brief History of Religion

Your Sunday Skepticomic from David Horsey



To view last Sunday's comic click here.


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Aug 18, 2007

The Boneyard #3

The Boneyard paleo-carnival is up at Laelaps. Get your osteology on!


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Bonobos "Red in Tooth and Claw"

Bonobos are not totally peaceful, but reports have been greatly exaggerated


John Hawks has a great review of the commentary following Ian Parker’s New Yorker article "Swingers" on bonobos as well as Frans de Waal’s response in eSkeptic. I’ve previously commented about this issue here and here. However, I disagree somewhat with my fellow anthro blogger that de Waal is accusing Parker of having a political agenda. De Waal points out that conservative pundits picked up on this article in order to, following Parker’s phrase, “use the species as a stick to beat” their ideological drum. What de Waal points out is that Parker was merely “sexing up” his article to raise a little controversy.

Parker presented his trip as a fact-finding mission that had unearthed revolutionary new insights. His message was that bonobos are killer apes, just like their cousins, the chimpanzees. The animal kingdom remained “red in tooth and claw,” as it ought to be.

Yet, the most striking cases of bonobo aggression that he reported have been known for decades, and actually didn’t come from the natural habitat, even less from first-hand observation by our brave explorer.

Challenging a widely held view, even without anything dramatically new to report, is a standard journalistic hook in order to generate audience interest. Whether Parker intentionally chose this tactic or whether it just seemed to be the most exciting way to tell the story isn't all that important. It was a beautifully written piece on the difficulties of fieldwork which ultimately contained flaws about bonobo social behavior.

Parker quotes primatologists Gottfried Hohmann and Craig Stanford (two researchers I greatly respect) in such a way that it implies de Waal has been wrong in his interpretations since he’s never done field work himself. Stanford had some of the most critical statements but, since he’s never done fieldwork with bonobos either, these aren't as relevant as Hohmann's. However, while Hohmann has published some exciting field results showing that bonobo behavior could be more flexible than previously thought, his findings do not contradict de Waal’s interpretations.

For example, Parker takes issue with de Waal's statement that:

“Who could have imagined a close relative of ours in which female alliances intimidate males, sexual behavior is as rich as ours, different groups do not fight but mingle, mothers take on a central role, and the greatest intellectual achievement is not tool use but sensitivity to others?”

Taking each point individually, compare that with the following statements from Hohmann's publications:

1. “Aggression by males against females was rare and was almost never followed by mating between aggressor and target. Female aggression against males occurred frequently but appeared to be independent of mating behaviour.” Behaviour (2002).

2. “Why females of the two Pan species differ in their [genito-genital] displays of social status remains a challenge for future research. The finding that bonobos perform this behaviour so regularly indicates that social status is an important issue for the females of this species. Because of their frequent use, dyadic performance, spatial variability and behavioural plasticity, we suggest that genital contacts can be used to investigate the quality and dynamics of social relationships among female bonobos.” Animal Behavior (2000).

3. “Bonobos show an opportunistic and promiscuous mating behaviour, even with mates from outside the community.” Proceedings: Biological Sciences (1999). Also see Primates (2001) for a short communication involving tolerance of strangers.

4. “The lasting bonds between mothers and sons may be a substitute for male coalitions serving rank acquisition in chimpanzees.” Behaviour (1999).

Other than de Waal's final comment about intellectual achievement (which is a value judgment, even though bonobo empathy has been shown to be greater than chimpanzees) the two researchers don't differ substantially on these points. Parker didn't include this common ground but opted to create a wedge between Hohmann and de Waal. This opened the door for political pundits to declare victory that the bonobo "myth" had been disproved (which shows what standard of evidence they embrace).

However, it's important to point out that new field data has provided more complexity to the social lives of bonobos (and of chimpanzees as well). The excellent book Behavioural Diversity in Chimpanzees and Bonobos (of which Hohmann was a co-editor) shows how different environmental conditions bring out different sides to these species. An in depth review of this book can be found here.

Fortunately, and with all criticism aside, any discussion about bonobos can only aid in the conservation of this critically endangered species as it will activate their strongest base of supporters and bring them to the attention of others who may have never known there was more than one "chimpanzee." I also salute Parker’s dedication for taking such an arduous journey to watch bonobos personally, as brief as that may have been.

However, John Hawks is absolutely correct that Parker's misrepresentations are minor compared to some other blunders in science journalism. It's important for researchers to continually challenge those interpreting scientific results for the public so that such misrepresentations will be minimized.

Currently Gottfried Hohmann and Frances White are conducting field work in the region (I conducted an interview with Dr. White earlier about bonobo behavior). It will be exciting to learn what new insights are discovered about our evolutionary cousins.


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Aug 17, 2007

The Evolution of Metapopulations and the Future of Humanity

Or: Who's Your Neighbor?



Earlier I put out a call for evolutionary questions, and several of you responded. I will answer them all in the next few days. First off, ETBNC asked:

It's my understanding this species [Homo sapiens] lived in relatively small social groups (of a few dozen) for at least 95% of its existence as a species. For the last 5% of its history these homo sapiens have been trying to live in increasingly large social groups, as much as 6 or 7 orders of magnitude larger. Since homo sapiens is known to be able to modify its behavior patterns in, um, "interesting" ways, such discontinuity isn't that remarkable.

My hypothesis is that small social groups are still the default behavior for the species homo sapiens. . . . Does that seem like a reasonable hypothesis to you?

It is my view that this is absolutely correct and it has important ramifications for modern human existence, which I'll discuss. The earliest evidence for Homo sapiens in Africa is from about 200,000 years ago. The earliest large-scale societies are from about 10,000 years ago. This means that 95% of our history was spent in small, mobile groups living as hunter-gatherers. However, Homo ergaster, Homo erectus, Homo habilis and the Australopithcines would likely have lived in similar small groups. If we include the rest of our family as part of the human lineage than small groups would have been the norm for 99.9975% of our existence. And if we include our common ancestors with great apes then we might as well round up and conclude that human civilization has simply been a calculation error.

This raises two provocative questions: 1) Why after so long did humans begin living in large sedentary groups? and 2) What does this mean for our modern experiment in group living? The answer to the first question is simple: farming. The most recent ice age lasted from around 70,000 BCE to 10,000 BCE. According to genetic evidence, humans first migrated out of Africa between 59,000–69,000 years ago. Archaeologists have found the first evidence of farming and sedentary, long-term habitations from around 10,000 years ago (and most famously in the region known as the Fertile Crescent). These independent pieces of evidence strongly suggest that the ice age played a significant role in some human populations' original migration and subsequent discovery of agriculture. As Jared Diamond has brilliantly summarized in his Pulitzer Prize winning book Guns, Germs and Steel, agriculture then only had to be discovered independently a few times before it could spread across entire continents within a few hundred to a thousand years. Why agriculture wasn't struck upon earlier than 70,000 years ago is an interesting question, which I can follow up on if there is any interest.

However, agriculture proved to be a radically different way of interacting with the natural world, and it's easy to understand how our ancestors could find it so attractive (and also addictive). Up until this time food had never been an issue, that is, if you were hungry you went out and found food. You followed the migrating herds. You lived along rivers teeming with fish. You collected seeds, and grasses and tubers. On occasion there would be a shortage and many of your loved ones wouldn't make it through the winter, but in general a relatively small proportion of your time was devoted to food preparation.

Agriculture required remaining fixed to a certain area. It required daily toil to plow, plant and harvest the crops and, on top of that, there were constant pests and diseases that could decimate what you'd sown. But it offered control. You could store food and ride out long periods of inclement weather that wouldn't have been possible otherwise. It was a devil's bargain and some groups accepted. As Daniel Quinn suggested in his novel Ishmael, the early conflict between the hunter-gatherer way of life and that of the farmer may have been passed on to us through the myth of Cain and Abel.

These sedentary agricultural communities also allowed enormous population expansion. With a controlled reserve of food more people would survive. The population would expand and more food would be grown to compensate. For the first time in human history, people began to be surrounded by strangers in their own community.

But what does this say about human destiny? If our natural habitat is one of small, migrating groups how are we able to live in cities numbering in the millions? Answer: just barely. The most recent World Bank data demonstrate that only a tiny percentage of us live relatively decent lives, economically speaking. 84% of the world population currently lives on only 16% of the world's combined income. To put that into perspective, the richest 1% in the world today makes an average of $24,000 a year. When we think of the super rich we shouldn't think of Bill Gates, we should think of kindergarten teachers.

We are also living amidst a community of strangers. How many of your neighbors have you met? Where are they originally from? What did their parents do? My guess is that most people reading this don't know their neighbors very well at all. This is important when combined with such extreme inequality. Ethical behavior that was honed through group living (see my post on The Evolution of Morality) and that people would normally demonstrate towards a friend or loved one, doesn't apply as strongly towards a stranger. There are very few costs associated with cheating someone in a business transaction if you're unlikely to ever see that person again. This has necessitated blind laws (such as mandatory minimums and three strikes) in order to punish bad behavior that, in our hunter-gatherer days, could have been decided upon as a group. The earliest laws such as the Code of Hammurabi and the Ten Commandments decreed that death was to be the punishment for most infractions. That we've improved remarkably in our clemency isn't so much a testament to our own beneficence as it is a demonstration of just how off balance human civilization has always been.

So the answer is we're managing, but only barely. However, if the history of human civilization is any guide (think Angkor Wat, think Chichén Itzá), once the human population outstrips the landbase needed to support it then collapse is imminent. As I wrote earlier, we are seriously outstripping our global landbase and we're accelerating. It's going to be a wild ride.



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