Https://www.youtube.com/watch?v=mFnmosX-8-I “It’s all about maximising the chances of the male reproducing,” suggests Sarah Robertson in the College of Adelaide in Australia. The effects are most striking in fruit flies: seminal fluid might make the women eat far more, lay extra eggs and be a lot less receptive to other males. https://knoxmfzsl.wikicorrespondent.com/5746481/the_2_minute_rule_for_benefits_of_semen_retention