A grassroots effort is under way to collect and digitize hundreds of folk songs before the tunes and their traditional meanings fade from living memory.

Getting airborne was a challenge for the giant Argentavis magnificens, a condorlike bird that soared over South America about six million years ago.

Arctic ponds that have sustained thriving ecosystems for thousands of years are completely disappearing, a new climate change study shows.

A 1.2-million-year-old tooth discovered last week in northern Spain came from Western Europe's earliest known human, according to the team that made the find.

Hurricanes could speed up recovery of bleached coral reefs by stirring up deep, cool, restorative water, a new study says.

See a roundup of the week's news and events: Peru's vicunas, Indian water pots, China's desert train, and more.