There was a fascinating study I read several years ago that sampled the genes of children and their parents across working, middle and upper classes in the UK, looking for variations in the degree those women had made cuckolds of their husbands.  In other words, what percentage of families had children from fathers other than the father the children thought was theirs?

Across all UK classes, ~20 percent of children were living in families with fathers that were not their own.

On a show called Radio Lab, available by blog cast, there was a story that described a boy’s genotype being compared to his mother’s with the discovery that the boy’s mother was not really his mother.  After confirming that there had been no hospital mix-up (the boy was directly related to his dad), it was discovered that the mother was actually a two-person hybrid, a chimera.  In the womb, two embryos had somehow merged.  The boy was a direct descendant of some parts of the mother’s body, but not other parts.  The boy was not descended from the parts that had been the mother’s uterine sister.

A feature of rare aboriginal societies is that there are children that don’t…

I have been told by others, particularly by author David Brin with some annoyance, that my bias toward the matrifocal frame weighs down what I am trying to communicate.  At those moments you feel most perturbed by how I’ve said something, do tell me so my turns of phrase don’t turn stomachs.  I’d rather communicate than indoctrinate.

I write about 90 days before posts appear.  In a couple weeks [a couple months ago], posts start to emerge that begin with the observation of a possible erroneous connection, that both Hopi and Trobriand Islanders have languages with not much more than the present tense and both are matrifocal.  Two cases a pattern does not make.  That the Hopi are mostly present tense is contested.  The Sapir-Whorf hypothesis (that language informs culture with language structure guiding culture values) is considered disproved by many, but I’m thinking there might be a connection between language, ancient matrifocal society, primary process and autism.

A premise in that long piece, “Introduction to the Theory of Waves,” is that matrifocal societies will evidence diseases and conditions associated with autism in modern society.  I’m starting to think that premise may be wrong.  The particular way…

In Seattle seeing family in March, I noticed American Indian and Asian populations, both with epicanthic folds.  The epicanthis fold is considered a neotenous feature because all humans exhibit this in the womb.  Many are born with the feature and lose it as they grow older.

As noted in previous pieces (see http://www.neoteny.org/?p=375), people with Down syndrome display the fold.  People with Down syndrome exhibit a host of neotenous features.

What strikes me is the possibility that epicanthis folds might offer a signal for social structure anomalies.  This seems a stretch because Asian societies are largely patrifocal, negating the feature’s correlation with matrifocal societies.  Still, it would be interesting to know the variety of cultures around the world that display this feature.

I’ve discussed the two different kinds of neotenous societies, the Scandinavian and Asian paradigms.  The two kinds of societies display two different clusters of neotenous characteristics.  Scandinavians show blond hair, blue eyes, light skin, lanky builds and egalitarian societies.  Asians display light skin, childlike, fragile features, short height and the epicanthic folds.

One society matrifocal at its foundation, the other society patrifocal.

The tentative resolution of this conflict was discussed in the series of posts…

There is a not politically correct notion that the individuals that make up ancient aboriginal societies are different from contemporary humans.  It is usually assumed that they are different as in less evolved, less intelligent or less capable.  It depends on whom you talk to or what you’re reading.

The American philosopher Ken Wilber attempts to take this issue head on, repackaging the 100-year-old four-fold parallelism that equates human evolution, societal evolution, individual ontogeny and an individual’s psychology.  Wilber does not frame the differences between an individual in an aboriginal society vs. an individual in modern society in negative terms, but seeks to unpack the features of various stages of growth and show how these stages manifest on a number of different scales.  Growth, transformation, evolution, all these aspects of how life manifests over time, display pattern.  Those patterns can be described.  Ken Wilber seeks to describe how those patterns manifest in human society.

My personal focus is the influence of sexual selection on social structure mediated by changes in the rates of maturation.  The patterns I focus on are very specific.  Still, I focus on biology, society, ontogeny and personal experience, the four-fold parallelism.  Wilber is more general in…

Rosanna and I are conducting an overview of matrifocal societies around the world, seeking correlations with the primary elements of the thesis.  I’m estimating that a matrifocal society will have females with higher testosterone and higher estrogen than a modern conventional society, males with lower testosterone and lower estrogen, more frequent anomalous cerebral dominance with both cerebral hemispheres more often the same size, a leftward shift of Annett’s handedness distributions (more left-handers), delayed puberty and tendencies to exhibit specific diseases and conditions characterized by the hormonal tendencies just mentioned.

There is the possibility that matrifocal societies will have language structures characterized by an emphasis on the present tense as in the Hopi and Trobriand Islanders.  This would suggest an affinity to primary process in waking consciousness:  one time, one place, no negatives.  An implication might be a different kind of sense of humor and a possible different kind of creative imagination.

Elia and I were talking last night about the relevance of myth.  Elia suggested that the structure of the mythology of matrifocal societies may reflect the unique neurological constellation we are proposing.  We considered that the myths might show a single story line, main character almost always present (no…

“Events and objects are self-contained points in another respect; there is a series of beings, but no becoming.  There is no temporal connection between objects.  The taytu always remains itself; it does not become over-ripe; over-ripeness is an ingredient of another, a different being.  At some point, the taytu turns into a yowana, which contains over-ripeness, and the yowana, over-ripe as it is, does not put forth shoots, does not become a sprouting yowana.  When sprouts appear, it ceases to be itself; in its place appears a silasata.  Neither is there a temporal connection made–or, according to our own premises, perceived–between events; in fact, temporality is meaningless.  There is no tenses, no linguistic distinction between past or present.  There is no arrangement of activities or events into means and ends, no causal or teleologic relationships.  What we consider a casual relationship in a sequence of connected events, is to the Trobriander an ingredient of a patterned whole.  He names this ingredient u’ula.” (Lee, D (1968) “Codifications of reality: Lineal and non-lineal,” in Every Man His Way: Readings in Cultural Anthropology, Dundes, A., Prentice-Hall, Englewood Cliffs. p. 334)

Wandering through my notes looking for patterns, I came across this passage about…

Consider the exhibition of partnership society or matrifocal features in Scandinavian societies and evidence of these qualities in the Canadian, New England, Minnesota and Wisconsin populations.  In earlier pieces, we’ve noted the possible relationships between the need for Vitamins A and D in Scandinavian populations and the exhibition of neotenous features in both sexes of the populations, such as blond hair, blue eyes, lanky builds and lactate tolerance.  Observing the egalitarian social and political aspects of Scandinavian nations, I’ve hypothesized that there might be a direct connection between the neotenous features of individuals within a population and the partnership or matrifocal features exhibited by the society as a whole.

I’m seeing similar patterns in other regions of the world.  Of course, individuals from Finland, Norway, Sweden and Denmark have immigrated to Canada, New England, Minnesota and Wisconsin, carrying their biological and social proclivities with them.  Would this explain why North Dakota and Montana are so conservative by comparison?  Do North Dakota and Montana have different ethnic makeups?

I’m seeking evidence that simply living in a northern latitude influences populations to exhibit neotenous features.  One place to look for information is by exploring differences between indigenous American Indian populations.

…

“Thus…

Ten years ago as this theory came together, then called “Shift Theory,” I imagined setting up a research foundation to explore the medical implications of the hypothesis. With the original impetus behind the research being an exploration of the origin of dragon and then serpent myths across six continents (see humanevolution.net), I titled the first site the Serpent Foundation. The serpent suggested, for me, the matrifocal origins of culture and the serpent as a symbol of the medical profession, a connection derived from those early societies.

With time I let the title drop. It seemed cultish and, in our culture, suggestive of something sinister. Visitors were sometimes confused. Confusion was not the effect I was looking for. Nevertheless, serpentfd.org is still a functional domain name of the original site, now going by the URL sexualselection.org.

Ten years later, I’ve brought in a research assistant, Rosanna Schatzki, to help me gather information and help write papers that will appear in this blog from time to time. Roger Olson continues his excellent editing as he has over the last year, having edited almost 400 pages of these essays.

Of the…

Modern technology serves hidden societal assumptions. Different societies encourage radically different uses of technology. A hybrid transitional society with easy access to energy supplies and natural resources, such as the United States, proliferates technologies like a wildflower garden sends out seeds. Still, there is a method to the madness of technological innovation.

On one side perches the atomic bomb and pregnancy ultrasound, two of the most powerful tools of a patrifocal society. On the other side, serving a matrifocal society, are the Pill and the Internet.

Across the world there is a war being fought between destruction and creation. On the eastern front, battles wage across a woman’s womb; and the sex of the survivor determines both the structure of future society and that society’s talent and tendency to innovate. On the western front, the military-industrial-financial world alliance is clashing with the Internet society, and losing.

Female foeticide is one of the greatest killers on the planet, a scourge that goes almost unremarked. Modern ultrasound technology has facilitated the abortions of female fetuses rather than the drowning and smothering of infants. It is a machine that insures a child is male. The liberal West supports abortion. The conservative West supports…

Yesterday, I met my younger sister Terry and her family in the Walker Brothers in Highland Park.  Our dad was treating us.  It was 8:30 a.m. on a Saturday.  I am the oldest of three kids, the only one still close to home.  We were eating breakfast a few blocks from one of the houses Terry and I grew up in.

Talking with my niece Renee, she told me about her choosing the economics of institutions as her undergraduate major, and her likely specialization as Ph.D.  It combines history, political science and economics and offers a wealth of interesting areas to explore.  Renee was excited.

I asked if there were evolutionary aspects to the discipline, if a paradigm of a succession of institutions in different societies over time was examined.  Renee was not aware that this was the case.  From her introduction to the study, it looked like the economics of institutions concentrated on snapshots of a place and time.

Riane Eisler’s The Real Wealth of Nations explores society’s institutions from a matristic point of view.  It’s not exactly an evolutionary model, but Eisler reveals the recent emergence of “partnership” society horizontal and egalitarian economic and government institutions.  From what…

“In a case-control study of testis cancer 259 cases with testicular cancer, 238 controls treated at radiotherapy centres and 251 non-radiotherapy hospital in-patient controls were interviewed about some possible prenatal and familial risk factors for the tumor.  For firstborn men, the risk of testis cancer increased significantly according to maternal age at the subject’s birth, and this effect was most marked for seminoma.  The association with maternal age was not apparent for cases other than firstborn.  The risk of testis cancer was also significantly raised for men from small sibships and of early birth order.  These results accord with the theory that raised maternal levels of available oestrogen during the early part of pregnancy are aetiological for testicular cancer in the son, although other explanations are possible; there is evidence that seminoma risk may particularly be affected.” (Swerdlow, A. J., Huttly, S. R., Smith, P. G. (1987) Prenatal and familial associations of testicular cancer.  Br J Cancer 55 (5):571)

A number of studies have emerged that connect birth order to enhanced likelihood of contracting specific diseases or conditions and increased hormone levels associated with those conditions.

A connection not made is that hormones, specifically testosterone, particularly the mother’s testosterone levels…

Just had a rather odd thought that may or may not be relevant to the principles I’ve been exploring.  I’m wondering if estrogen levels in procreating males and females influence the number of children in families.

There are r and K strategies for guiding progeny to maturity.  In an r strategy, you have as many children as possible to compensate for an inability to control an environment often hostile to progeny achieving maturity.  In the K strategy, parents conclude that by paying close attention to fewer progeny, adulthood for the offspring can be more predictably achieved.

A high-estrogen male would likely be more inclined to pay close attention to his children than a low-estrogen male.  That attention would more likely translate into a K strategy whereby the child is ushered into adulthood with much attention.  Plummeting birth rates in Europe and developed countries might be directly related to changing male hormone levels, elevating estrogen.  Twentieth century high fat diets may be partly responsible for drops in birth rates.

High fat diets granted to emerging middle classes in developing countries may be leading to a diminution in population explosion as males become more solicitous of their children.

Studies with animal populations…

It seems for now that this Theory of Waves, broken down or reduced to eight prototype human beings, offers some purchase to grip the theory that has been difficult up to now. Time will tell whether this is really the case. I just know that the three disciplines, Anthropology, Evolutionary Biology and Neuropsychology, and their doorway concepts of social structure, heterochrony and balanced polymorphism, haven’t felt particularly friendly to most folks introduced to these concepts.

To review, there are eight prototype human beings.

Female
High testosterone, high estrogen (F TE)
High testosterone, low estrogen (F Te)
Low testosterone, high estrogen (F tE)
Low testosterone, low estrogen (F te)

Male
High testosterone, high estrogen (M TE)
High testosterone, low estrogen (M Te)
Low testosterone, high estrogen (M tE)
Low testosterone, low estrogen (M te)

There are natural complementary pairings. Opposite sexes are drawn to their opposite hormonal complements, not just to the opposite sex.

Female te/Male TE
Female tE/Male Te
Female Te/Male tE
Female TE/Male te

The complements naturally ally themselves into social structures, patrifocal and matrifocal, with two variations within each.

F te/M TE Conventional Patrifocal
F tE/M Te Warrior…

Ten years ago, I was exploring the possible origin of human culture in tribal societies driven by rhythmic dance and music. Tribal societies are on rare occasions characterized by paternal anonymity, or children who are unaware of the identity of their biological father. Observing that human brain size began to diminish about 25,000 years ago, I hypothesized that this reflected an emerging patrifocal emphasis on speech instead of gesture and a movement away from a selection for big-brained males. If this was the case, I suspected that there might be remnants of the old matrifocal paradigm that still exist within contemporary society. In the neurological literature, I sought humans with unusually large brains, difficulty with language, but who were also ambidextrous or left-handed. I came to find that autistic individuals commonly display these features; in addition, I discovered that individuals with autism are often obsessed with pattern replication and have perfect pitch (Brenton, Devries, Barton, Minnich & Sokol, 2008).

It appeared that hidden beneath the just-so story was a theory, which, if brought to light, could help make useful predictions and illuminate unrecognized relationships. From the beginning, the theory drew information from three different disciplines: anthropology, evolutionary biology…

Imagine social structure, matrifocal and patrifocal, as representing left and right or past and future in a distribution of humans inclined toward egalitarian or hierarchical organization, our matrifocal past leading to our patrifocal present.

Consider human males exhibiting neoteny or maturational delay contrasted to females showing acceleration or maturational acceleration as pairing together neotenous, cooperative males with maturational-accelerated, commanding females.  We would hypothesize this to be a matrifocal society.  Now, consider the reverse, with neotenous females mating with accelerated, dominating males in a patrifocal society.  Heterochrony is the evolutionary biological principle that explores the influence of neoteny and acceleration on the evolution of species.

Last, note in neuropsychological studies of handedness and cerebral dominance in humans that there is a seamless arc of handedness tendencies beginning at the left end with strong left-handers bridging over to the right side with strong right-handers.  Most people are toward the center, many being right-handed but displaying some left-handed aspects.

An overlapping of all three of these academic traditions suggests a single process manifesting in three seemingly different areas.  Anthropological social structure exploring matristic vs. patristic frames, evolutionary biological neoteny/acceleration studies following the influence of changing maturation rates on physiologies and neurologies over time…

“The diversity of human skills and the improbability that any one individual could be good at everything makes it reasonable to suggest that different genotypes, for different patterns of CD [cerebral dominance], are associated with various strengths and weaknesses that complement and balance one another in the population as a whole.” (Annett, Handedness and Brain Asymmetry, p. 186)

Thirty years ago in Guatemala, a student of Marian Annett, W. J. Demarest, evaluated Mayan and Ladino (mixed Spanish and Indian) children to see if their handedness distributions were similar to Annett’s UK studies.  Annett hypothesized that the way that the British are cerebrally organized would carry over to humans across the planet based upon the fairly consistent manifestations of left-handedness that are observed.

The conclusion of the Guatemalan study suggested that the Mayan children did not exhibit the same distribution of handedness, implying a different distribution of cerebral lateralization.  The Mayan children drifted further to the left, emphasizing that they might be less lateralized for language.  The thesis of this website would argue that the Mayans exhibit a more matrifocal social structure than Western societies, the left drift in handedness appraisals suggesting an older genotype.

In another study, indigenous Americans located…

Some of the least complex toys are the most powerful.  In the 1950s, my parents seemed amused that Slinkys and Hula Hoops had captured my sisters’ and my attention.  These toys were so simple.  Nevertheless, they were compelling.  Some of the simplest metaphors or processes can suggest or reproduce seemingly complex relationships.

Seeking to understand human evolution by focusing on individual adaptability to circumstance offers some unique and useful perspectives.  Exploring human evolution by examining humans in society can in ways simplify the play of transformation.  Raising the scale, shifting to society from individual, can simplify our understanding of the process.

Marian Annett’s explorations of the brain changes that compelled a shift to speech revealed a “balanced polymorphism,” or seamless arch of human features from those humans with little speech facility to others cerebrally lateralized so intensely for speech that they are handicapped in communication.  Those in the middle, she suggested, had a heterozygote advantage by retaining some of the useful pre-speech strengths in combination with speech proclivities.  Speech facility demands that the right hemisphere be pruned of some of its potential growth and subtlety in combination with a brain bridge reduced in size.  Odd that a reduction in hemispheric…

I am a web developer by profession, trained in fine arts.  My specialty in web design is creating websites and website features that enhance communication, eliminate barriers to cooperation, empowering individuals to accomplish social and political-change goals.  I work with more than 1,000 organizations across the United States, teaching leaders of organizations how to use these new tools to break down barriers to change.

I also run a firm that serves over 400 businesses by building, maintaining and marketing their websites.  Trained in the art of online organizing by Moveon, I advanced to the position of volunteer national coordinator.  There I learned firsthand how to combine a focused, goal-based business frame of reference with a deep desire to encourage societal transformation.

My background is fine arts.  As an artist, I specialize in brush and ink.  The way that I have exercised my art also involves the breaking down of barriers.  First, I seek to let go of conscious control of subject and process and allow my unconscious to determine the path and content of my productions.  Second, the content itself, when successful, creates bridges between separated concepts, connections between not-obviously-related ideas.

I am not suggesting this qualifies me to be…

Consider that human evolution unfolds in a fashion not dissimilar to the way an accordion player produces melody and harmony while inflating and deflating his instrument over time.  The accordion player may observe his audience and modify cadence or change the tune depending on whether folks are dancing, how fast they’re dancing or whether they are paying attention at all.  The instrumentalist’s environment informs the tune he plays and how he plays it.

Human communities are composed of many types of folks.  Not just the individuals in communities are molded by evolutionary processes, but the communities themselves behave like selected targets with those communities that exhibit a variety of useful features that encourage a thriving population surviving and procreating.  This has been called a balanced polymorphism.  A wide variety of human types can contribute to a healthy, balanced polymorphism and a healthy community.

For example, in contemporary society, we observe the artists, caregivers and athletes performing and serving while exhibiting strengths peculiar to their particular neurology, psychology and physical proclivities.  Politicians and business people do what they do best, stoking the economy and growing opportunities.  Aesthetics and usefulness combine to create a satisfying social experience and a balanced society.

It…

A superb 25-year study in the UK by Marian Annett ending in the 1990s seemed to prove that in that part of the UK, left-handedness was not increasing over time. It’s been a difficult issue to parse out, what with left-handedness being repressed before WW II. When conventional wisdom declared that forcing children to switch hands would encourage stuttering, schools withdrew from demanding all children use the right hand. A result has been that though it looks like the number of left-handers has been increasing over the decades, it is obvious that institutions stopping the repression of left-handers has skewed the numbers.

A similar effect is seen in Asia. Society has strongly encouraged that the left hand not be used. The rates of left-handedness in many parts of Asia are 2% and lower. It’s difficult to determine the true handedness percentages.

The same effect comes into play with autism. Though it seems there have been dramatic rises in autism over the last twenty years, many believe we just have more refined evaluation protocols with more attention being placed upon those individuals exhibiting unconventional behaviors.

The thesis presented in this work makes several predictions regarding handedness and autism, two issues that…

Last night was one of those nights when I could not easily fall asleep.  I’m conducting an experiment.  I’m feeling compelled to sleep on my back to see if over six months my left-side, 12-13 mm quasi-fusiform carotid artery cerebral aneurysm diminishes in size.  I’ve slept on my right side my whole life.  It’s not likely, based on what the surgeons have suggested, that sleeping on my back can have an effect.  Still, I feel like there is something I can do to make a difference.  The night I came to this conclusion was the night that the four-pole thesis began to form.

So I sleep light instead of my customary deep.  Mortality feels not particularly far away.  Often my mind starts wrestling with the principles discussed in this blog.  On nights like last night, I move the concepts around a 4-D space, looking for new relationships.  A couple things came to mind last night.

In the four-pole hypothesis….

F te/M TE        Conventional Patrifocal
F tE/M Te        Warrior Patrifocal
F Te/M tE        Contemporary Matrifocal
F TE/M te        Classic Matrifocal

….  I’d anticipate that representatives of all four pairings, all eight individual prototypes,…

Why are specific diseases, disorders and conditions emerging with specific populations at this specific time?  Can the principles that we have recently focused on involving estrogen and social structure lead to clearer answers than those we’ve received until now?

The foundation of this theory I’m calling my “Theory of Waves,” formerly called Shift Theory, is built from social theorist Riane Eisler’s focus on matristic society, Marxist anthropologist Chris Knight’s human evolution theory based on female choice, evolutionary psychologist Geoffrey Miller’s theorizing on sexual selection, Charles Darwin’s work on sexual selection (and Lamarckian selection), Stephen J.  Gould’s addressing heterochronic theory and neoteny, Norman Geschwind’s Cerebral Lateralization conjectures and Marian Annett’s research on random-handedness.  Simon Baron-Cohen’s recent personal encouragement that this theory is significant has provided me the confidence to begin contacting researchers and academics as I seek support and criticism of the Theory of Waves.  I am an amateur theorist with no institutional support.  The concepts herein have not been exposed to peer review.  I am not a scientist.

I view this creation as a work of art.  I pay attention to what seems interesting.  I let myself be guided by what draws me.  I am constantly sifting through patterns, feeling…

I’m starting to muddle through the implications of the four-pole hypothesis of four prototype pairings, with eight prototype human beings, four in each sex. (Proceed to the essays “Estrogen Ascendant” and “Estrogen Play” for more background on the concepts addressed in this essay.)

F te/M TE Conventional Patrifocal
F tE/M Te Warrior Patrifocal
F Te/M tE Contemporary Matrifocal
F TE/M te Classic Matrifocal

F te/M TE means low-testosterone & estrogen female, high-testosterone & estrogen male. Domineering, caring, discriminating men choosing cooperative women.

F tE/M Te means low-testosterone, high-estrogen female, high-testosterone, low-estrogen male. Domineering men choosing cooperative, caring, discriminating women.

F Te/M tE means high-testosterone, low-estrogen female, low-testosterone, high-estrogen male. Commanding women choosing creative, cooperative, caring, discriminating men.

F TE/M te means high-testosterone & estrogen female, low-testosterone & estrogen male. Commanding, caring, discriminating women choosing creative, cooperative, aloof men.

We have noted that Marian Annett observed a balanced polymorphism of gradations between random-handed and strong right-handed individuals within a society. We might conclude that just as there is a hypothesized random-handed prototype human and a strong right-handed prototype human, with some people fitting those exact prototypes, most folks in our four-pole hypothesis…

For the last two nights while I’ve been dreaming, my mind has been wrestling with an integration of testosterone and estrogen in the model that’s come together the last three weeks. Dreams, metaphors and thoughts combine to synthesize the variables and data. This morning I awoke aware that there’s been a piece that is seeking understanding.

Marian Annett has pioneered new understandings of handedness, generating a host of clues as to how humans evolved and order themselves in society. Annett hypothesizes that one might be random-handed or right-handed, with a continuum of tendencies revealing that it’s not as easy as being one or the other. With our tentative model of evolution and society formation, repeating an earlier posting…..

—

We are playing with the concept of four prototype pairings, with eight prototype human beings, four in each sex. We are estimating that because the mother, at six weeks before birth, sets her children’s testosterone levels based upon her own testosterone levels (mother with high testosterone T creates low t males and high T females while a mother with low t creates low t females and high T males) that estrogen will run a similar dynamic. The result will be natural…

We are playing with the concept of four prototype pairings, with eight prototype human beings. We are estimating that because the mother, at six weeks before birth, sets her children’s testosterone levels based upon her own testosterone levels (mother with high testosterone T creates a low t male and a high T female while a mother with low t creates a low t female and a high T male) that estrogen will run a similar dynamic. The result will be natural mated pairings resulting in across-sex matchings of testosterone and estrogen that will be complementary opposites. We are hypothesizing that there will be exceptions, but they will not be the convention in that society.

F te/M TE Conventional Patrifocal
F tE/M Te Warrior Patrifocal
F Te/M tE Contemporary Matrifocal
F TE/M te Classic Matrifocal

F te/M TE means low-testosterone & estrogen females, high-testosterone & estrogen male. Domineering, caring, discriminating men choosing cooperative women.

F tE/M Te means low-testosterone, high-estrogen female, high-testosterone, low-estrogen male. Domineering men choosing cooperative, caring, discriminating women.

F Te/M tE means high-testosterone, low-estrogen female, low-testosterone, high-estrogen male. Commanding women choosing creative, cooperative, caring, discriminating men.

F TE/M te means high-testosterone & estrogen female, low-testosterone…