How do behavior, morphology and physiology act in concert to improve a male's reproductive success - and why is there so much variation among outcomes within and between species? Aa Aa Aa Reproductive ...

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 ...

Humans are sexual, meaning that both a male and a female are needed to reproduce. Each is equipped with specific organs capable of producing specific cells needed to procreate. In conjunction with a ...

The male reproductive system refers to the bodily systems responsible for sexual function in males. It consists of external and internal structures responsible for the formation, storage, and ...

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 ...