From snow-capped peak to smoldering crater, see how the major eruption 30 years ago today changed the face of the famous volcano.
Native mammals are unlikely to rebound while pythons are present, a study suggests.
The debate around whether to fall back and spring forward has been heating up in state legislatures.
After severe floods in Tbilisi, Georgia, elite zookeepers from the Prague Zoo help exhume hundreds of animal bodies from the waist-deep muck.
Rescuers say that more than 3,000 baby sea lions have washed ashore this year, raising questions about what the future holds after three years of mass strandings.
What was that you felt? Faults deep underground produce different kinds of earthquakes.
The Iditarod dogsled race started on Sunday-here's what you might not know about the so-called last great race.
Our second season at the Skirball Performing Arts Center begins October 2015.
Using cutting-edge research tools, Stanford professor Barbara Block is unraveling the mysteries and revealing the marvels of bluefin tuna.
Subscribe to National Geographic magazine and save. Print and digital editions available for as little as $12.