Scientists discovered that making a very small change to female mice's DNA caused them to develop male reproductive organs.

Prostate cancer is the most common type of slow-growing cancer in men, which, if detected early, is curable. Some early-stage symptoms of the disease are blood in the urine or semen, trouble urinating ...

Suzanne La Follette, an Austin firefighter battling terminal cancer, is fighting a second battle: getting worker's ...

A new study shows scientists can pause sperm production and restore fertility, offering a promising path toward reversible ...

The hectocotylus is both a reproductive organ and a sensory organ, a rare combination in animals, new research suggests ...

For mating male octopuses, one limb is more important than all others. That is the third right arm or hectocotylus, which is ...

A rare crab found in India shows both male and female traits, helping scientists unlock secrets of sex development and ...

Researchers have discovered that the immune system's T cells can travel to the prostate to provide long-term protection against infections. Their findings suggest we might harness these same ...

A research team shows that melatonin protects male reproductive function under heat stress by restoring antioxidant balance, reducing inflammation, and regulating key amino acid pathways.

Male fish typically outperform females in spatial learning tasks, but new research shows that exposure to antidepressant ...

Scientists have learned how male octopuses’ specialized sperm-depositing arm knows where to go ...

Having a baby in space may require a bit more direction, with new Adelaide University research revealing the navigational abilities of sperm are negatively impacted by a lack of gravity. Researchers ...