Https://www.youtube.com/watch?v=mFnmosX-8-I “It’s all about maximising the likelihood of the male reproducing,” says Sarah Robertson of the University of Adelaide in Australia. The effects are most striking in fruit flies: seminal fluid may make the girls take in much more, lay extra eggs and become considerably less receptive to other males. https://www.youtube.com/watch?v=mFnmosX-8-I