New research shows potential for a male contraceptive
Tuesday, June 9, 2009 - 14:49
in Biology & Nature
Researchers have known for more than half a century that sperm is able to fertilize an egg only after it has resided for a period of time in the female reproductive tract. Without this specific interaction with the female body, the sperm is incapable of producing offspring. But until now there was very little understanding of what changes occur within the sperm that suddenly allows it to fertilize an egg.