Study suggests males with older brother more likely to be gay

A team of researchers from the University of Toronto, the Institute of Sexology and Sexual Medicine, Charité – Universitätsmedizin Berlin and the University of Lethbridge has found evidence showing that males with an older brother have a greater chance of being gay than males that do not. In their paper published in the journal Proceedings of the Royal Society B, the group describes their study of data from past research efforts and what the learned from it.

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Having older brothers tied to being gay, if you're a guy

Men With Older Brothers More Likely To Be Gay? Study Expanding To Biological Origin

Men who have an older brother are more likely to be gay, new study suggests

Guys With Older Brothers Might Have a Higher Chance of Being Gay, Study Finds

There's no 'gay gene,' but genetics are linked to same-sex behavior, new study says - The Washington Post

Research results that the probability that a man with an older brother is gay is 38% higher - GIGAZINE

Boys who are left handed and have lots of brothers more likely to be gay, research finds

Men with older brothers are more likely to be gay, study suggests

Men With Older Brothers More Likely To Be Gay? Study Expanding To Biological Origin

brother - 家具

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Research confirms men with older brothers are more likely to be gay, suggesting same-sex attraction has a biological basis