Prometheus 6

You know what? They're here...they're queer. Get over it so we can do real problems. Like flag burning.

A 2003 survey found that 30% of Americans believed sexual orientation was innate and 14% said it was determined by upbringing, besides the 42% who considered it a lifestyle choice. That survey was conducted by the Pew Research Center for the People & the Press and the Pew Forum on Religion & Public Life.

Polls show that people who believe sexual orientation is governed by biology tend to support gay rights, whereas those who consider it a choice don't, said Dr. Jack Drescher, who chaired the American Psychiatric Assn.'s Committee on Gay, Lesbian and Bisexual Issues for six years. 

Study Links Male Gays, Birth of Older Brothers
A mother's antibodies may change with each boy, raising chances the next will be homosexual.
By Karen Kaplan
Times Staff Writer
June 27, 2006

Having one or more older brothers boosts the likelihood of a boy growing up to be gay — an effect due not to social factors, but biological events that occur in their mother's womb, according to a study published today.

In an analysis of 905 men and their siblings, Canadian psychologist Anthony Bogaert found no evidence that social interactions among family members played a role in determining whether a man was gay or straight.

The only significant factor was the number of times a mother had previously given birth to boys, according to the report in the Proceedings of the National Academy of Sciences.

The so-called fraternal birth order effect is small: Each older brother increases the chances by 33%. Assuming the base rate of homosexuality among men is 2%, it would take 11 older brothers to give the next son about a 50-50 chance of being gay.

But at a time when, according to one survey, 42% of Americans consider homosexuality to be a lifestyle choice, the study provides more evidence of biology's role in determining sexuality.

"People are coming to realize that biology — in a broad sense of the word — does play an important role," said neurobiologist Simon LeVay, who has documented anatomical differences in the brains of gay and straight men. He is not connected with the study.