OVER the past few weeks, we’ve been examining each body system in detail. This week and next, we will focus on our final, most vital system: the reproductive system. Our focus this week will be on the ...

Despite their formidable bodies, male gorillas are lacking in one particular area of their anatomy. They have the smallest penises and testes of all apes, and produce a low amount of sperm that ...

Recently, scientists have reviewed the existing literature to understand how space travel, space radiation, and microgravity affect human reproductive functions. This review was published in Npj ...

New research has mapped the cell types that specialize to form reproductive organs in both sexes, identifying key genes and signals that drive this process. The findings offer important insights into ...

In a recent review published in International Journal of Molecular Sciences, scientists discuss the effect of bisphenol A (BPA) on human male fertility. Study: The Effects of Bisphenol A on Human Male ...

Male fertility rates have been plummeting over the past half-century. An analysis from 1992 noted a steady decrease in sperm counts and quality since the 1940s. A more recent study found that male ...

Human male reproductive cells are officially breaking Newton’s Third Law of Motion by swimming through biological fluids without triggering an equal and opposite reaction. Researchers recently ...