In the natural world—where predators pounce, prey flee, and group members feed and sleep in solidarity—animal behavior is ...

Smithsonian researchers trekked to a remote site in northern Canada to collect four-billion-year-old rock samples that could ...

A fresh look at data from NASA's Magellan mission has revealed potentially ground-shaking insights into mysterious structures ...

The Midcontinent Rift is a giant tear that formed in what is now the U.S. Midwest 1.1 billion years ago. Nicknamed North ...