Emerging insights into the genetics and evolution of human
The evolutionary paradox of homosexuality Being gay no longer holds the stigma it once did, but in evolution, why does a non-reproductive trait persist? Exclusive US Offer - try a BBC Science Focus Magazine subscription and get your first 3 issues for only $ PLUS get delivery from the UK!. 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. I'm gay, I'm wondering why evolution would allow that when it
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. In the last two decades, dozens of scientific papers have been published on the biological origins of homosexuality - another announcement was made last week. It's becoming scientific orthodoxy. 
Darwinian Paradox
But since gay and lesbian people have fewer children than straight people, a problem arises. "This is a paradox from an evolutionary perspective," says Paul Vasey from the University of Lethbridge. 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.
The Darwinian Paradox of Homosexuality
My personal theory derived from this is that perhaps homosexuality is actually a biproduct of bisexuality, and that bisexuality has been evolutionary beneficial because it enables you to foster relationships with both sexes. Kind of like bonobos. Homosexuality has been an acknowledged aspect of human society since our earliest recorded history. In some civilizations, such as ancient Greece, homosexuality was relatively common and accepted.
Prosociality and a Sociosexual Hypothesis for the Evolution
The widespread occurrence of same-sex attraction in humans and across the animal kingdom poses an evolutionary puzzle: if exclusive homosexuality reduces direct reproduction, why has the trait persisted at stable, low frequencies (roughly 3–5% of the population) worldwide scienced. Official websites use. Share sensitive information only on official, secure websites. Homosexuality and Evolution
Can an evolutionary theory of homosexuality ignore its intertwining with gender expression and identity? An evolutionary theory of human homosexuality is thus a multifaceted enterprise. In the following pages, I will critically review studies that are relevant to one or more possible objectives of an evolutionary theory of human homosexuality. . Evolutionary Explanations for Homosexuality in Humans and
Abstract Human same-sex sexual attraction (SSSA) has long been considered to be an evolutionary puzzle. The trait is clearly biological: it is widespread and has a strong additive genetic basis, but how SSSA has evolved remains a subject of debate. Of itself, homosexual sexual behavior will not yield offspring, and consequently individuals expressing strong SSSA that are mostly or exclusively. . 
Homosexuality may have evolved for social, not sexual reasons
Genes linked to same-sex behavior may boost reproductive success in heterosexuals, helping explain their evolutionary persistence. Same-sex sexual behavior may seem to present a Darwinian paradox. It provides no obvious reproductive or survival benefit, and yet same-sex sexual behavior is fairly. .