Scientists just invented microscopic knives capable of stabbing and killing bacteria on contact. The germ theory of disease emerged over the last several centuries to explain the way microscopic ...

Imagine visiting a mangrove in the Caribbean and discovering a human as tall as Mt. Everest. Something like that happened to marine biologist Jean-Marie Volland — except instead of a human, he ...

New research suggests a closed toilet seat may not be as helpful to block the spread of germs as we once thought.

That is one big bacterium! Researchers have discovered a bacterium visible to the naked eye, challenging prevailing notions about the size of bacteria, most of which only can be seen when using a ...

The bacteria, shown here next to a dime, are close to the size of human eyelashes. (Tomas Tyml | The Regents of the University of California, LBNL) Bacteria typically live out their teeny-tiny lives ...

Bacteria typically live out their teeny-tiny lives in the microscopic realm, but now scientists have found a gargantuan one the size and shape of a human eyelash. The new find is "by far the largest ...