Emmanuel Mairesse

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

Dolphins: The Wild Side follows these mammals in the wild as they fight for mating rights, hunt for food, and clash with other dolphin species. Thanks to some brilliant underwater camerawork, we're treated to the sight of dolphins hydroplaning through 10 inches of water after fish, ramming one other in a quarrel over females, and evading a group of hungry orcas in Alaska. (Killer whales are actually part of the dolphin family, but they feel no compunction about feeding on their smaller cousins--not a scene for the squeamish!) But perhaps the most impressive part of this documentary are the scenes of a dolphin pod working in concert to trap a shimmering, mammoth school of sardines. Through calculated use of air bubbles, tail slaps, and sonic pips, the animals corral their prey and have a feast. The clever, and at times ruthless, nature of these mammals is on abundant display in this entertaining documentary

National Geographic embarks on a 250-mile adventure through unspoiled territory along the coast of British Columbia called the Great Bear Rain Forest. It is here that bear-hunting wolves take to the sea, grizzlies clash in titanic battles, and wild salmon are the pulsing lifeblood of an entire ecosystem. As this precious habitat faces an uncertain future, threatened by chainsaws and fish farms, a team of dedicated scientists is racing to prove that it must be protected. Forming a wilderness detective squad, these experts are searching for the rare white spirit bear and collecting clues that will decipher the secret life of the forest's elusive inhabitants.

Bob Ballard reveals the inside stories behind his most exciting discoveries, while sharing the personal triumphs, challenges and tragedies that led him to them.

It’s a revelation conjuring heated debate: According to a recently translated ancient text called the Gospel of Judas, the disciple infamous for betraying Jesus may well have been Christ’s most faithful servant and—because the Savior asked him to—accepted perpetual disgrace to bring about Jesus' death. Explore the mysticism of early Gnostic thought expressed in words written on a 1,700-year-old leather-bound papyrus. Hear the interpretations of four biblical scholars. Follow this fragile document from its discovery in Egypt to its translation and ultimate presentation to the world. And share your thoughts on the Gospel of Judas.

Nova and National Geographic present exclusive access to an astounding discovery of ancient fossil human ancestors.

Documenting the shadowy world of illegal trade that in this era of globalization spans the entire planet with a growing web of criminal networks. Counterfeiting is not just about knock-off brand handbags or pirated DVDs; these global supply chains also carry much more dangerous items: drugs, weapons, fake pharmaceuticals, knock-off car and airline parts, and more.

As part of a high-tech forensic probe into the demise of Egyptian Pharaoh Tutankhamun, scientists use X-rays and CT scans as they attempt to reach a conclusion about just how this famed king died. In addition, they explore the mysterious curse on explorers linked to Tut's tomb excavation.

While most think an oasis in the desert is at best a mirage, this is not always so, as is the case of the jewel of the great African Kalahari Desert, Okavango. This nourishing delta, the largest within the borders of the Dark Continent, is the lifeblood for thousands of weary animals making the trek across the unforgiving sun-baked lands of Zimbabwe. Brought to video by National Geographic, this documentary refreshes the minds of the viewer with an educational and visually stunning look at the natural watering hole that supports the nomadic wildlife of the surrounding Northern Botswana region.

Natural history documentary. Doctor Phil Manning and his team of scientists at The University of Manchester reveal the secrets of how dinosaurs lived, looked and moved as he examines 'Dakota', one of the most complete dinosaur mummies ever discovered.

South Florida is the only place on Earth that is home to both the American alligator and the American crocodile (and most recently, the Nile crocodile). But who is the baddest Florida predator?

A follow-up to the documentary Raising the Mammoth. Join French explorer Bernard Buigues and his team of scientists in an underground frozen cave as they analyze the remains of the 20,000 year old mammoth found in Siberia.