As space travel expands, scientists warn that reproductive health risks and ethical gaps can no longer be ignored.

Short-term sperm–oocyte co-incubation during IVF cycles with only one or two retrieved oocytes produced cumulative live birth ...

For decades, scientists have tried to answer a simple question: why be honest when deception is possible? Whether it is a peacock's tail, a stag's roar, or a human's résumé, signals are means to ...

"If reproduction is ever to occur beyond Earth, it must do so with a clear commitment to safety, transparency and ethical ...

Ungulate migration has fascinated people for millennia. In the Western United States, ungulates such as elk, bison and mule ...

A new study has uncovered a hidden step that helps the deadliest malaria parasite survive and multiply inside the human body.

A Human Rights Watch report says that ICE raids and the targeting of political enemies shows a shift toward authoritarianism ...

Assisted reproductive technologies (ART) have become an integral component of infertility care worldwide. Alongside their widespread clinical use, growing ...

A new study by cell biologists at the University of California, Santa Cruz, suggests that an early first pregnancy may protect against breast cancer decades later by preventing age-related changes in ...

These “walking sharks” can lay eggs without spending extra energy, rewriting what scientists thought they knew about reproduction.

Why do we sometimes keep eating even when we're full and other times turn down food completely? Why do we crave salty things ...