Paterna Biosciences says it has determined the set of instructions needed to turn sperm-making stem cells into "normal, ...

Utah startup says it grew human sperm in lab, creating embryos in early test of infertility breakthrough.

Now, scientists are taking control of that formula. The equation for making a human is not straightforward anymore. In a ...

A judge said Robert Albon, who calls himself Joe Donor, has been running an illegal sperm donation business ...