A recent study from the University of Cologne has revealed that microscopic soil worms called nematodes form surprisingly ...

Male hormone levels maintain day-to-day stability while female hormones experience continuous changes throughout both the menstrual cycle and various life stages.

Learn about the Church's stance on IVF and reproductive technologies. Catholics are being reminded of the teachings on reproduction.

In the hidden chambers of Japanese forests, a quiet rebellion has been unfolding for decades. Scientists have now confirmed ...

Desperate wannabe parents are betting their life savings on unproven treatments and false promises ...

A fetal development video created by an anti-abortion group may become a required watch in Utah schools with a bill advancing ...

Researchers tested a birth-control vaccine designed to prevent deer from reproducing for multiple years. The vaccine is ...

Premature ovarian insufficiency (POI) affects 1–3% of women and has limited treatment options. Researchers report that ...

Some fish in oceans and reefs possess a remarkable ability to change their sex. This adaptation, known as sequential ...

Scientists say they have been able to uncover the time of year that men are at their most fertile, and produce their highest quality sperm.

Endometriosis is a condition in which tissue similar to the lining of the uterus grows in other parts of the body. It often silently erodes fertility .