New research shows many people vastly underestimate other people's beliefs in extraterrestrial life. Is social stigma keeping ...

The natural and the social world shaped the evolution of each. Knowing whom to invite to dinner is as important as knowing ...

The Amazon molly reproduces without sex. A genomic copy-and-paste trick called gene conversion may explain how it avoids evolutionary meltdown.

Many people who don’t believe one conspiracy theory about that station—known as the High-frequency Active Auroral Research ...

Amazon mollies don't need a man, and never will. A new study finds they can purge and repair genetic mutations that would otherwise plague a self-cloning species.