Gay uncle hypothesis

The evolutionary puzzle of homosexuality

These figures may not be high enough to sustain genetic traits specific to this group, but the evolutionary biologist Jeremy Yoder points out in a blog post, external that for much of latest history gay people haven't been living openly gay lives. Compelled by society to enter marriages and have children, their reproduction rates may have been higher than they are now.

How many gay people have children also depends on how you define being "gay". Many of the "straight" men who have sex with fa'afafine in Samoa verb on to get married and have children.

"The category of same-sex sexuality becomes very diffuse when you take a multicultural perspective," says Joan Roughgarden, an evolutionary biologist at the University of Hawaii. "If you go to India, you'll find that if someone says they are 'gay' or 'homosexual' then that immediately identifies them as Western. But that doesn't mean there's no homosexuality there."

Similarly in the West, there is evidence

Gay Hypothesis

According to the first reference below, in some cases the cause may be a large number of brothers (3ish) and the birth order of the person (e.g. were they the 3rd male born).

The second reference finds a strong correlation between acts of familial incest (not necessarily immediate family) and homosexuality.

Anyways Science-Tech isn&#;t the place for OT SPAM.

Arch Sex Behav. Feb;31(1) Links
How many gay men owe their sexual orientation to fraternal birth order?Cantor JM, Blanchard R, Paterson AD, Bogaert AF.
Centre for Addiction and Mental Health, Toronto, Ontario, Canada.

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Abstract said:
n men, sexual orientation correlates with the number of older brothers, each additional older brother increasing the odds of homosexuality by approximately 33%. However, this phenomenon, the fraternal birth order effect, accounts for the sexual orientation of only a proportion of gay men. To estimate the size of this proportion, we derived generalized forms of two epidemiological statistics, the attributable fraction and the population attributable
The evolutionary advantage of homosexuality: a sterile debate
Why we should stop caring what evolution has to verb about homosexuality.
Pride month. As May faded into June, I couldn’t help but marvel that nobody batted an eye as America special-edition rainbow-ed everything. I amusedly thought back to my evening at Pink Dot SG (Singapore) last year, and how it probably generated enough controversy to last several months. You would think that being a multi-racial, multi-religious nation since our inception in , we would be primed to be more tolerant of differences.
(At least, I thought so. I thought wrong.)
Curiously, in conversations with friends on the anti-LGBTQ side of the fence, I noticed a recurring argument: that homosexuality isn’t natural. That it makes absolutely no evolutionary sense. Admittedly, I usually gave half-hearted shrugs because I had no strong counterarguments for that (I still don’t.). Yet if we consider it against the backdrop of today’s society, does this argument hold any more water at all?
Theodosius Dodzhansky said: “Nothing in biology ma

How Gay Uncles Pass Down Genes
Maybe everyone could employ a gay uncle.
A brand-new study found that homosexual men may be predisposed to nurture their nieces and nephews as a way of helping to ensure their own genes get passed down to the next generation.
Research has confirmed that male homosexuality is at least partly hereditary – it tends to cluster in families, and identical twin brothers of gay men are more likely to be gay than fraternal twin brothers, who do not share identical DNA.
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But scientists have been puzzled about how these genes are perpetuated, since homosexual males are less likely to reproduce than straight males. Basically, why haven't gay people gone extinct?
One thought is called the "kin selection hypothesis." Perhaps gay men are biologically predisposed to help raise the offspring of their siblings and other relatives.
"Maybe what's happening is they're helping their kin reproduce more by just being altruistic towards kin," said evolutionary psychologist Paul Vasey of the University of Lethbridge in Canada. "Kin therefore pass on more of the g