Human reproduction requires both male and female gametes. Gametes are special sex cells that contain the genetic information necessary to create a new life. Men produce millions of gametes called ...

Add Yahoo as a preferred source to see more of our stories on Google. I am a microbiologist, and my lab studies Toxoplasma. This new study bolsters emerging findings that underscore the importance of ...

Is the world in the midst of a male fertility crisis? Or are we overstating the problem? Here's everything you need to know: How has male fertility declined? Human sperm count has fallen by over 50 ...

The world is experiencing a quiet yet accelerating collapse in male fertility, according to a paper published Tuesday in the journal Human Reproduction Update. The study found sperm counts fell by ...