This story appears in the December 2012 issue of National Geographic magazine. On a gentle slope above a trail junction in Sequoia National Park, about 7,000 feet above sea level in the southern ...

The Amethystine python, one of the largest nonvenomous snakes, amazes scientists with its exceptional tree climbing skills in the rainforests of Northern Australia and New Guinea. Known for its ...

Climbers flock to Joshua Tree from around the world to tackle the literally thousands of routes open to them. There are challenges for all ability levels, with more than 8,000 climbing routes ...