There may be very easy way to predict the sex of sperm

A team of Japanese researchers comes across a remarkably simple trick.

Image source: Shidlovski / Shutterstock / Big Think
  • On average, ejaculate holds about a 50/50 mix of X and Y sperm.
  • In some cultures and countries, there are strong historical and contemporary preferences for males over females.
  • There are genes unique to X sperm that can be manipulated to make them swim more slowly than Y sperm.
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The way children draw human figures has changed since the 1970s, reflecting modern society's attitudes to gender — German study

Study finds both a possible rise in gender equality and gender differentiation.

Over the last half century Western European countries have enjoyed a large increase in gender equality.

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Porn arouses women and men in same neuronal way, review finds

The results contradict the popular assumption that men react far more strongly to pornography.

Pixabay
  • The review examined the results of 61 brain-scanning studies that involved 1,850 people.
  • The results of the review found no significant differences in how male and female brains respond to viewing visual erotic stimuli.
  • Still, one of the researchers noted that there are sex-specific differences in sexual behavior.
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What explains the pay gap in women's soccer?

The U.S. Soccer Federation says "market realities" explain the pay gap. Others say it's institutionalized sexism.


Naomi Baker - FIFA / Contributor
  • The U.S. women's soccer team recently won its fourth World Cup title.
  • The U.S. women's team has been far more successful than the men's team in recent years, yet men still receive higher pay.
  • All 28 players on the U.S. women's team have filed a lawsuit against the U.S. Soccer Federation over claims of unequal pay.
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Why is psychedelic culture dominated by privileged white men?

It isn't surprising, but what's behind the straight-white-male hegemony?

A recent study of users of novel psychedelic substances found, probably to no-one's surprise, that they are more likely than average to be male, white and college-educated.

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