By Will Dunham WASHINGTON, March 30 (Reuters) - As humankind moves toward the goal of establishing a long-term presence on ...

New study is the first to show that gravity plays a critical role in sperm’s ability to navigate toward an egg.

Floating in near-weightless conditions can be disorienting for even the most experienced astronauts. Male reproductive ...

Scientists warn that storage may cause sperm to lose quality over time, raising new concerns about fertility and conception ...

Researchers found that microgravity impairs sperm navigation without affecting speed, reducing fertilization rates and ...

The natural world continues to surprise us, and the most recent case, involving a snake named Ronaldo, has once again caught ...

A new study found that microgravity simulated on Earth hindered sperm cell movement, egg fertilization and embryo development ...

Researchers outline how specialized tubules in the hen’s oviduct sustain sperm and how management practices could safeguard ...

Getting to Mars is difficult. Conceiving a child there could be even tougher than expected. A recent study led by researchers from University of Adelaide has demonstrated that simulated microgravity ...

Aging men often lose the Y chromosome in a growing number of their cells—and it may be far more dangerous than once believed.

This week, we learned that across the animal kingdom, sperm cells have a short shelf life. A study implicated autoantibodies in the development of long COVID. And among its other drawbacks, the ...