Genetic Lessons From a Prolific Sperm Donor

December 18, 2009

Maxey, 51, happens to be one of the most prolific sperm donors in the country. Between 1980 and 1994, he donated at a Michigan clinic twice a week. He’s looked at the records of his donations, multiplied by the number of individual vials each donation produced, and estimated the success of each vial resulting in a pregnancy. By his own calculations, he concluded that he is the biological father of nearly 400 children, spread across the state and possibly the country. (Newsweek)