Biologists are quietly rewriting what it means to be alive, and the human body has become one of their strangest frontiers. Inside our cells and microbiomes, researchers are uncovering entities that ...

The human body is an amazing, curious, and disgusting thing. At any given moment, millions of tiny lifeforms are making their way across your body—both inside and out. And now, researchers say they've ...

This article was originally featured on Undark. For centuries, taxonomists have cataloged every living thing they could find. Expeditions have traveled the globe, searching for unknown species; ...