Sperm whales have a lot to say. The animals spend much of their lives in darkness, searching the ocean's depths for giant squid. So sound rules their world, especially in their tight-knit family ...

Why Have a Semen Analysis? If you and your partner are having trouble getting pregnant, one of the first tests your doctor will likely ask for is a semen analysis. While both men and women can have ...

A semen analysis can help your doctor diagnose fertility issues. A sample is looked at under a microscope to see how many sperm cells it contains, how they're shaped, and how well they move. (Photo ...

Add Yahoo as a preferred source to see more of our stories on Google. After struggling with infertility, these men sought out sperm donors to help them become dads. (Photo illustration: Yahoo News; ...

Just like urine and stool, semen can provide important clues about a man’s health. Variations in its color, texture, smell and volume can signal underlying health conditions. Understanding these signs ...