produce and transport semen, which contains sperm release sperm into the female reproductive tract during sex make male sex hormones, such as testosterone Have you ever wondered what the different ...

Clinical data reveals male factors contribute to half of all infertility cases, shifting the focus toward earlier preventative testing.

Genes associated with male reproductive biology appear to be under relaxed selective constraint in a primate species with low sperm competition.

In the introduction to her latest book, “GUYnecology: The Missing Science of Men’s Reproductive Health,” Yale sociologist Rene Almeling describes a day in the life of “John,” a regular guy who is ...

This short film introduces the topic of reproduction and that babies start from an egg and sperm. This series of short films ...

Researchers found "substantial" regional differences in sperm quality, with men in regions with more pollution. The post Air ...

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 ...

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which was first discovered in patients with severe pneumonia at the end of 2019, has since infected over 272 million worldwide and ...

It’s not just about chromosomes. Or reproductive cells. Or any other binary metric. Many genetic, environmental and developmental variations can produce what are thought of as masculine and feminine ...