For decades, a mysterious 819-day cycle in the Maya calendar...

By 2050, the way cities spread could decide whether hundreds...

Conservation wins are often told as stories about a single...

For years, scientists assumed one thing about warming forests: heat...

Smartphones sit close by for much of the day, and...

When a small set of ancient foot bones turned up...

Why do some words feel like velvet while others grate...

Many people reach for insect repellents like DEET during summer...

Easter Island sits alone in the South Pacific, thousands of...

Ant colonies run like living bodies. Queens produce offspring. Workers...

Far off the coast of Alaska, a camera on a...