What can be considered rare is the motivation to detect a chimera. Most chimeras look completely normal. Chimerism need not be present in the blood. So without physical abnormalities or strange blood typing to act as a motivator, there is little or no reason to pursue the diagnosis.

While there may be no physical signs of chimerism, the condition might be expressed in the behavior of a chimera as you have suggested. The creation or artifical chimeras lends creedence to this idea.

The creation of artificial “brain chimeras” is becoming a routine practice in the field of neurobiology. One such study conducted by German scientists created a brood of Japanese quails with female brains and male physiology.

“Male Japanese quails with female brains do not show male sexual behaviors”

The male quail chimeras with female brains did not display mounting or crowing behavior. It is a scientific fact the hypothalamus–pituitary–gonad (HPG) axis coordinates displays of sexual behavior with reproductive physiology. Sexual brain development therefore defines the ability of brain areas,including the neural part of the HPG axis, to respond to particular physiological signals in adulthood.

My take is that the formation of a spontaneous human chimera could be remarkably similar to the artificial lab process. When merging occurs in the womb, the embryos are little more than brain primordia.

The brains merge and create a hybrid brain structure or more appropriately a hybrid HPG axis – – both male and female at once. I believe sometimes the merging creates a human with same-sex attraction, other times merging creates a human with gender confusion, and sometimes perhaps no effect at all. It would largely depend on the physics of the collision of the two embryos as to how the resulting chimera would form.

1) I can have sex with women if really needed. It’s a popular misconception that just because we deem it extremely unappetizing that we somehow have lost reproductive capabilities. We haven’t.

2) I have very little effeminate characteristics. I have male interests and have no wish at all to be a woman despite being primarily attracted to men. I know a lot of the similar ‘invisible gay’ population who are the same. Homosexual males who do not exhibit the (wrongly) stereotyped behavior of what it meant to be homosexual. Historical records show the same thing with cultures which openly tolerated homosexuality – Celts and Greeks for example. It is in fact quite common among warriors. Note that I am not distancing myself from our more effeminate brethren. A lot of my friends are very flamboyant, but people need to realize that homosexuality is not defined by effeminacy. It is quite true though that gay men are more often than not more perceptive emotionally than straight men, but that can be explained by the fact that most of us underwent extensive constant trauma in our teenage years hiding who we are for fear of total rejection from society.

3) I have the same protective (and fatherly) instincts when it comes to women and children as your average heterosexual man. Maybe even more so because that instinct isn’t tainted by sexual attraction. Since most of us are either never given a chance or choose not to have children, we often lavish this fundamental ‘protector’ instinct on pets, our nephews and nieces, and adopted children instead. The evolutionary advantage of such a behavior is undeniable. In a tribal society, we would have provided much needed extra hunter/gatherer numbers for the women/children of the tribe but without the drive to compete with other males for the attention of the females. There’d be no danger of us fighting with the males over the females and risking a further decline in the population of providers.

4) While it is true that unlike most lower animals, we have the power to actually choose what we do consciously, homosexuality again has never been a conscious decision for us. I had my first same sex crush at the age of 7 before I even realized what sex was. I realized that the same attraction meant I was gay at 12. Most gay men I know have similar stories, almost all of them realizing they were homosexual at about the same time heterosexual males start having interest in girls. Even men who have been forced to marry women and only came out in their middle ages. Bisexuals may have different experiences. And yes, as soon as I realized that my behavior was considered ‘sinful’ and ‘aberrant’ I tried as hard as I could to change my behavior, even going so far as to date girls. The result is still the same – there is absolutely no way for me to change my sexual orientation unless I allow myself to be subjected to extreme forms of behavioral conditioning (i.e. brainwashing). In which case, the risk of becoming psychologically damaged (in some cases becoming totally asexual) is very great indeed. Since my behavior does no harm to anyone but my own capability of propagating my genes. I do not see why I should even attempt to ‘correct’ my sexual attraction at all, nor why most heterosexual males seem to be threatened by it.

Because really… when you think of it. Why is there so much antagonism towards homosexual males? Particularly in regions which follow a patriarchal/male-centered culture/religion? The amount of [murderous] hatred directed at us makes no sense. The rather flimsy excuse of being unnatural is not enough (why do you then not execute people born with congenital deformities? More importantly, the fact that we have existed continuously and independently in human populations in all parts of the world all throughout history on circumstances not of our choosing means it IS a natural). We do not threaten the heterosexual male propagation of their DNA. To the contrary we actually help ensure the survival of their offspring.

As such it is a far more interesting question to identify the cause of male homophobia rather than the cause of homosexuality itself. Sexuality and gender is, after all, just an instinctual vehicle for reproduction. A biological mechanism humans have long lost the need for when they became fully conscious.

In contrast to say, a lot of teleost fish species who often change sex just to ensure their species’ survival, or to whiptail lizards and social insects who have either completely eliminated or relegated the status of the male gender as a DNA randomizer, we do not anymore need the urge to copulate with a woman in order to survive extinction. We already know the mechanics of reproduction. Our brains are starting to break free of the mindless robotic drive of the DNA to make copies of itself in any way possible even if it meant the death of the original carrier or the death of several other individuals of the breeding population. We are even beginning to start modifying our own DNA by consciously choosing our reproductive partners (consciously guided sexual selection which results in certain perceived advantageous traits in races to be magnified without having to rely on random mutation/recombination/complex mating rituals) and direct genetic manipulation itself. Rewriting the book so to speak.

Who we are emotionally/sexually attracted to has lost its significance to our survival as a species. Unless we suddenly lose our cognitive power, even if a homosexual man and a homosexual woman are the last humans left on earth after an unimaginable apocalypse scenario, they are both still perfectly equipped to reproduce the human race. And while they may not like it, they have brains that know what they have to do regardless of what they feel like doing. So why is it such a big deal?

This doesn’t say that the chimera explanation is not involved – it may well be, just that sexual antagonism long known in animals may also be present in humans and explain male homosexuality.

Also, it’s believed that female homosexuality is a different phenomenon, since sexual antagonism doesn’t match observations in female homosexuality.

I have g/g/b triplets and I see A LOT of feminine characteristics in my boy. He’s only five, so it’s not like I have any way of knowing at this point if he will be gay, but I would consider it a future possibility.

I know a tremendous amount of triplet families with fraternal mixed set triplets. Why not follow us and see what ends up happening in 10-15 years? What percentage of our g/g/b or b/b/g triplets will end up gay or lesbian due to environmental conditions in the womb? We are the perfect group to pose this question to.

(Loken is an actress who was in a relationship with Michelle Rodriguez, which was in my opinion the best looking lesbian couple ever. )