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A pioneering British scientist who set up a controversial London fertility clinic with his wife in the 1940s may have fathered up to 600 children, according to research from two men who have discovered they are his biological sons. Barry Stevens, a documentary film-maker from Canada, and David Gollancz, a London-based barrister, say that on the basis of recent DNA tests Dr. Bertold Wiesner made up to two-thirds of the clinic's total sperm donations.

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Cleveland Clinic has launched the NextGen Home Sperm Banking Service, which uses an at-home collection kit and overnight shipping to expand fertility preservation options to men throughout the United States. The service, offered by Cleveland Clinic’s Andrology Lab and Reproductive Tissue Bank, uses a specially-designed collection kit that comes with instructions and packaging for overnight mail delivery to Cleveland Clinic’s lab for cryopreservation and long-term storage.

Physicians and the federal government cited the case of a San Francisco Bay area man who has fathered 14 children as an example of the risks posed by the informal market for sperm donations, which doctors consider unsafe but some people call a civil liberties issue. Trent Arsenault, 36, of Fremont offers his sperm for free to women he meets through his website. In addition to the 14 already born, he says four more are on the way. In the meantime, he is contesting a U.S. Food and Drug Administration order to cease and desist.

A former top Alabama official who campaigned against gay marriage in his failed bid for governor has donated sperm to several lesbian couples in New Zealand while doing earthquake-recovery work, according to The New Zealand Herald. His wife described the news as "the utmost of betrayal." Bill Johnson, 52, who describes himself as a conservative Christian, used an online alias to meet women wanting to get pregnant, the paper says. He said he could not have biological children with his wife, Kathy, who had a hysterectomy before they married in 2004.