A small brown mouse has just done something no mammal has ever done before: give birth on Earth after spending part of its reproductive cycle in orbit. It sounds like a quirky space trivia item, but ...

During its gestation, the house mouse starts out as a single fertilized cell and three weeks later is ready to enter the world as a free-living pup composed of more than 500 million cells. Scientists ...

A new candidate has emerged in the quest for a male birth control pill. Researchers at Baylor College of Medicine, Houston, developed a contraceptive that was 100% effective at reducing fertility in ...

A new drug was able to quickly and temporarily immobilize sperm in male mice, according to a study published Tuesday in Nature Communications, a discovery researchers described as a “game-changer” ...

Scientists are testing an experimental birth control that can stop sperm from swimming. Male mice injected with the drug quickly and temporarily became infertile, researchers reported Tuesday in the ...

A new form of birth control for men is showing promising results in lab mice, rendering them "temporarily infertile" via a single injectable dose, according to a study published on Tuesday in the peer ...

Pregnancy brings a rise in pancreatic beta cells -- the cells that produce insulin. Shortly after birth, these cells return to their normal levels. The mechanisms behind this process had remained a ...

When it comes to birth control for men, there are only two options: condoms or surgery. But a recent study in mice shows a promising new alternative. Researchers at Weill Cornell Medicine tested a non ...