Life began small, but even the tiniest cells need a...

Rows of desks and timed tests once suited factory-age education...

Antarctic sea ice used to advance and retreat with seasonal...

People who breeze through multiplication often chalk it up to...

For years, bacteria dominated gut health research. Now, the gut...

Off the eastern tip of Java, dredging barges dragged up...

In the United States, about 32 percent of adults now...

Tiny bits of plastic no wider than a human hair...

The sea spider, those spindly marine oddities that seem composed...

High in northern Peru, three frogs no bigger than a...

Long before modern climate records began, a very different Earth...