Mixed gender pornography boosts sperm production

Science journal Nature is reporting on a study which has found that sperm production is boosted when men view pornography including images of both men and women, rather than pornographic images of women only.

Although this seems to go against common perceptions about male sexual preferences, it is consistent with the theory of sperm competition, says study leader Leigh Simmons of the University of Western Australia, Perth. This states that males (of many species, including humans) should produce better sperm when faced with a female who has other mates, because this stimulates them to boost their chance of procreation.

It seems all this week’s science news is about sex. I guess summer is officially here, even in the world of science.

Link to story from nature.com

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