Men and women often enter relationships with different long-term goals. In the animal world, differences in approaches to reproductive success can lead to sexual conflict. In a new study, scientists show that sexual conflicts can evolve rapidly in natural populations, driven by competition among males for mating success. Now, in a new study, scientists of the University of Oregon and Bowdoin College show that sexual conflicts can evolve rapidly in natural populations, driven by competition among males for mating success. The study was published online in BioMed Central’s open-access journal BMC Evolutionary Biology.