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 ...

The human body may seem like a single, self-contained system, but it actually hosts trillions of microscopic organisms. These ...

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 ...

There are many different ways germs can enter the body. Sometimes, they find a way in through an opening like the mouth, nose, eyes or a cut in the skin. Most of these germs – what scientists call ...

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 ...

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