The tornado that struck El Reno, Oklahoma, on May 31, 2013, defined superlatives. It was the largest twister ever recorded on Earth.

The special is in partnership with The Washington Post and staff writer Christian Davenport, whose depth of experience allowed him to gain inside...

Tim Laman a photographer for National Geographic and ornithologist Ed Scholes have been traveling to some of the most remote jungles the world has...

Three great whites are spotted in the waters off Oahu, but another one could be lurking just below the surface.

The Serengeti is one of the most brutal environments on the planet. It's also home to the tough Vumbi lion pride. Using ground-breaking new tools...