Since the world is both metaphorically and, in some places, literally on fire these days, I’ve replaced…

An international group of scientists say their latest research will upturn one of the earliest scientific…

Regular physical activity can keep a man’s sperm in tip-top shape, a new study suggests.

Women face the brunt of societal pressure to have children before a certain age, but a new study concludes that the…

Semen frozen back in 1968 has been used to impregnate dozens of Merino ewes, resulting in healthy lambs. The…

First, the bad news: Sunday is the anniversary of the disastrous white supremacist Unite the Right rally in…

It’s long been thought that tighty-whiteys and other kinds of snug underwear can be bad for men’s semen quality,…

The microscopic processes involved in human fertilization are a difficult thing to convey visually, but a group of…

Something weird is going on with human sperm production. For decades, scientists have warned that sperm counts are…

Lots of species do some wild sex stuff. The purple stone crab is no exception: Females have seminal receptacles, a…

In a breakthrough that almost sounds too good to be true, researchers have found a potential new form of birth…

A team of German scientists were wondering how to deliver medications into the female reproductive tract and…

It’s one thing to hear about Michael Phelps winning a gold medal. It’s quite another to actually see him do it.

A popular fertility treatment introduced in the early 1990s has been linked to low sperm counts in men born from the…

For the first time ever, scientists have produced live mice without a fertilized egg cell. The potentially…

In preparation for the upcoming Olympics in Brazil, a British long jump champion is planning to freeze his sperm…

Fruit flies have enormous sperm. This is a well known fact in the scientific community—so well known, in fact, that…

Researchers just found an on-off switch for sperm movement. This has the potential to help men who are infertile,…

Scientists from China have made history by taking a cell that’s not a sperm cell and then used it to create a live…

What you’re seeing in this video is obviously a sperm cell, except it was made in a lab, not a testicle. It’s…