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 ...

Male genitalia, both internal and external, is made of many components. The testes are an important internal component, and the penis is the main external part. The male genital system consists of ...

In the last 50 years, average human sperm concentrations dropped by 51.6 percent, and total sperm counts dropped by 62.3 percent, according to a study published last week in the journal Human ...

A Vermont elementary school says it will no longer use the words “male” or “female” when teaching fifth-grade students about puberty and human reproductive systems. Families of students at Founders ...

DALLAS – Nov. 16, 2006 – A dioxin toxin contained in the herbicide Agent Orange affects male reproductive health by limiting the growth of the prostate gland and lowering testosterone levels, ...