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 ...

Biologists are confronting a problem they thought they had mostly solved: what, exactly, counts as life. A wave of discoveries at the edges of biology has produced organisms and quasi-organisms that ...

Termites have a bad reputation. Most think of them as pests, a status that isn't helped by their recent reclassification into the cockroach family. But not only do the termites that cause serious ...