Kitten Season is what those of us in animal welfare call the months when feline reproduction goes into overdrive and kittens ...

Warmer oceans and depleting food have affected the ubiquitous loggerhead turtle’s reproductive and migratory patterns — and even its size.

Rioters in Bnei Brak, east of Tel Aviv, turned over an Israeli police car and set fire to a motorcycle amid anger over conscription ...

Changyin’s reinterpretation of worms as cells reflects other ways for women to think about the blood of menstruation and childbirth. The negative views of female bodies expressed in the “Blood Bowl ...

About 1 in 10 couples struggles to get pregnant within a year, which is the clinical definition of infertility.

Fertility in your 20s and 30s isn’t always guaranteed. An expert explains hidden reproductive health risks, lifestyle factors, and early warning signs to watch for.

The age-dependent decline in sperm and semen affects male fertility. In studies of more than 2,000 couples, one study showed men older than 45 took five times longer to conceive than men younger than ...

Week 2 of the menstrual cycle often includes ovulation and the fertile window. During this time, sperm survival plays a key role in conception. Understanding how long sperm can live, what supports ...

During an episode of their podcast, the pair chat about the discomfort women are made to endure compared to men ...

Scientists at Michigan State University have uncovered the molecular “switch” that powers sperm for their final, high-speed dash toward an egg. By tracking how sperm use glucose as fuel, the team ...

Scientists have documented same-sex behavior in many animals. Learn what it means, how it varies, and why human labels can mislead.