Bay Area startups developing the high-tech way to make a baby

As Silicon Valley technophiles use devices to collect data on everything from how many calories they burn to their fluctuating stress levels and their posture, a group of entrepreneurs is bringing that technology somewhere ...

More sperm cells may be needed to overcome high mortality rate

It's one of the true miracles of life, that moment when hundreds of little sperm make it all the way to an unfertilized egg and one breaches its walls. But what of all those other spermatozoa, the hundreds of millions of ...

Male extinction prevented by promiscuous females

Female fruit flies with a large number of sexual partners are playing an invaluable role in preventing the extinction of males, research at the University of Liverpool has shown.