Evolutionarily speaking, being gay is still something of an enigma
- Heterosexual people have been less interesting to scientists than gay people, in terms of where they come from, because, evolutionarily speaking, being gay doesn't lead to a higher "higher reproductive fitness" — meaning, it doesn't lead to more babies.
- Across cultures, gay boys tend to be more interested in spending time with their mothers.
- We still don't really know why gay people are attracted to each other.
The study suggest implicit biases can change significantly over a relatively short timeframe.
- The study examined the results of more than 4 million tests designed to measure implicit and explicit biases.
- The tests measured attitudes toward groups defined by age, disability, body weight, race, skin tone, and sexuality.
- All explicit biases decreased during the study's timeframe, while several categories of implicit bias diminished.
How did human homosexuality evolve?
- Standard evolutionary theory may not tell the full story of human sexuality, says Yale professor Richard Prum.
- Same-sex attraction may have evolved to contribute to female alliances, and male-male sexual attraction may have also evolved to enhance female freedom of choice, posits Prum.
- Richard Prum is the author of The Evolution of Beauty: How Darwin's Forgotten Theory of Mate Choice Shapes the Animal World. Read more about Prum's theory of same-sex evolution here.
A study suggests people act aggressively on their prejudices when they have plausible deniability.
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