Here, the authors draw heavily on evolutionary psychology, which declares that we are «hard - wired» for certain reproductive behaviors, but not determined by them. (religion-online.org)
If neutering is done at an early age, it helps eliminate reproductive behavior concerns. (pmcofedmond.com)
Over the years, I have studied a variety of topics, including sperm competition, parental care, alternative reproductive behaviors, female mate choice and sexual conflict. (amnat.org)