Homosexuality may have evolved for social, not sexual reasons
Estimates as to the number of gay people in the population range from 1-in to 1-in, so why are some people gay? Are they gay by choice or is being gay genetic? The simplest answer is to look at the definition of the word "gay." The term gay is a synonym for homosexual, which is defined as, 1,2 "Of, pertaining to, or exhibiting sexual desire or behavior directed toward a person or persons. Recently, scientists announced that they found some genes that might be associated with sexual orientation and a biological explanation for the reason gay men tend to have older brothers. But the field of sexual orientation research is far broader and more complicated than two studies—and Lisa Diamond , a psychologist and sexual orientation researcher at the University of Utah, knows that better than most. What’s Behind the Rapid Rise in LGBTQ Identity?
There are already good answers talking about why some people are attracted to other people of the same gender. However, I'm going to answer a different question, namely, why are people gay. Reviewed by Psychology Today Staff. Sexual orientation describes patterns of sexual, romantic, and emotional attraction —and one's sense of identity based on those attractions. 
Sexual Orientation
What causes sexual orientation? It’s not completely known why someone might be lesbian, gay, straight, or bisexual. But research shows that sexual orientation is likely caused partly by biological factors that start before birth. People don’t decide who they’re attracted to, and therapy, treatment, or persuasion won’t change a person’s sexual orientation. You also can’t “turn. Being gay no longer holds the stigma it once did, but in evolution, why does a non-reproductive trait persist? In George Levick, an explorer, travelled to Antarctica.
Scientists May Have Finally Unlocked Puzzle of Why People Are Gay
A few scientists think so. Scientists may have finally solved the puzzle of what makes a person gay, and how it is passed from parents to their children. Typically, this question is posed as a paradox. In a paper published yesterday by myself and Duke University professor Brian Hare, we propose human sexuality including homosexuality evolved as an outcome of the evolution of increased sociability in humans. 
There is no ‘gay gene.’ There is no ‘straight gene
What’s more, the growth in LGBTQ identity is primarily being driven by an increase of bisexuality, it’s not due to more gay and lesbian people coming out. The number of Americans who identify as bisexual has exploded, especially among young women. The Gallup data shows that nearly one-quarter of young women identify as bisexual. Estimates as to the number of gay people in the population range from 1-in to 1-in, so why are some people gay? Are they gay by choice or is being gay genetic?
What Science Knows About Why People Are Gay
Recently, scientists announced that they found some genes that might be associated with sexual orientation and a biological explanation for the reason gay men tend to have older brothers. But the. .
Why are people gay?
For Professor Vasey, it seems obvious that being Fa’afafine and being gay is the “same trait, expressed differently depending on the culture.” He even argues that the oddity is the West – that the way homosexuality manifests in Europe and North America may even be an expression of our repression rather than our freedom. “The part of the brain that controls sexual partner preference. . What causes sexual orientation?
Gay sex and attraction may have evolved because individuals with a degree of same-sex attraction benefited from greater social mobility, integration and stronger same-sex social bonds. .