Contrary to predictions, thoughts about partner infidelity didn't make men produce higher quality ejaculate. I find the whole human sperm competition approach spermythology. https://www.researchgate.net/profile/Todd_Shackelford/publication/322527281_Do_Men_Produce_Higher-Quality_Ejaculates_When_Primed_with_Thoughts_of_Partner_Infidelity/links/5a5f6f39458515b437796a94/Do-Men-Produce-Higher-Quality-Ejaculates-When-Primed-with-Thoughts-of-Partner-Infidelity.pdf …pic.twitter.com/G5P8JIBVrZ