Kyle Gordy, a 32-year-old from California, US, is set to make history as one of the most prolific sperm donors in the world. He has already fathered 87 children and by the end of this year, Gordy is ...

For the purposes of this article, I will focus on open donors—those who are willing to be contacted in the future. Known donors (e.g., a friend or relative) introduce additional complexities, such as ...