The idea that gay parents are more likely to have gay children has long been thought to be a myth among sexual orientation researchers. For example, a review of the literature published in 1999 emphatically stated that “the incidence of homosexuality is no higher if one is raised by a gay or lesbian parent, than if one is raised by a heterosexual parent.” However, recent research challenges this conclusion.Read More
Most people are cisgender, meaning that their gender identity corresponds with their birth sex; however, some people are transgender, meaning their gender identity and birth sex are different. Increasingly, scientists have been working to help us understand what accounts for this gender variability, and research suggests that the answers may have to do with both genetics and the brain.Read More
Social scientists have long been interested in the factors that predict divorce. Over the years, they’ve identified a number of things that seem to increase the odds of a couple dissolving their marriage; however, the evidence hasn’t always been consistent across studies, with some effects being more reliable than others. In this article, we'll review some of the most interesting findings from this area of research.Read More
A new paper accepted for publication in the Journal of Personality and Social Psychology suggesting that computers have better “gaydar” than humans made quite a media splash this week. Specifically, this study found that a machine algorithm correctly classified 81% of men and 74% of women as either gay or straight; by contrast, human judges correctly classified just 61% of men and 54% of women in terms of their sexual orientation.
These findings have raised a lot of ethical concerns, with many gay rights groups expressing worry about how such findings could potentially be used for nefarious purposes.Read More
Where does our sexual orientation come from? That's a question that we don't yet fully understand. However, a growing body of research suggests that it may be determined, at least in part, by our genetics.
Scientists have been searching for years for a so-called "gay gene," and the results have been nothing short of fascinating.Read More
How is sex determined? In humans, it’s a matter of genetics, and it begins the moment a sperm cell fertilizes an egg, thereby producing a certain combination of sex chromosomes. Throughout the animal kingdom, though, sex determination varies widely and isn’t always genetically based, as biologist Aaron Reedy explains in the TED-Ed video below. For example, in some species—such as alligators and turtles—sex is actually determined by the environment. Specifically, the sex of these reptiles depends upon the temperature of their eggs at a critical point in development (cooler = male; warmer = female). Check out the video below to learn more about other fascinating variations in how sex is determined throughout nature.Read More