Https://www.youtube.com/watch?v=mFnmosX-8-I “It’s all about maximising the likelihood of the male reproducing,” says Sarah Robertson in the College of Adelaide in Australia. The effects are most hanging in fruit flies: seminal fluid will make the women eat a lot more, lay far more eggs and become less receptive to other males. https://www.youtube.com/watch?v=mFnmosX-8-I