A rebel animal breaks from his pack and lives to be one of the oldest wolves in Yellowstone National Park.

National Geographic: Incredible Human Machine takes viewers on a two-hour journey through an ordinary, and extraordinary, day-in-the-life of the human machine. With stunning high-definition footage, radical scientific advances and powerful firsthand accounts, Incredible Human Machine plunges deep into the routine marvels of the human body. Through 10,000 blinks of an eye, 20,000 breaths of air and 100,000 beats of the heart, see the amazing and surprising, even phenomenal inner workings of our bodies on a typical day. And explore striking feats of medical advancement, from glimpses of an open-brain surgery to real-time measurement of rocker Steven Tyler's vocal chords.

Discover the stories and testimonies of everyone involved in this tragedy, from those in charge of rescue operations to personnel trapped in the buildings just moments before the impact.

After years of anticipation, autonomous vehicles are now being tested on public roads around the world. As ambitious innovators race to develop what they see as the next high-tech pot of gold, some experts warn there are still daunting challenges ahead, including how to train artificial intelligence to be better than humans at making life-and-death decisions. How do self-driving cars work? How close are we to large-scale deployment of them? And will we ever be able to trust AI with our lives?

The story of a man coming to terms with the sins and secrets of his notorious brother and, in the process, exploring the legacy of violence in his own family.

Doug Collins has been a highly-respected analyst at the FBI for twenty-five years. He is liked and admired by all the members of his team, but they've seen changes in Doug recently: an attractive young girlfriend, working odd hours, increased frustration at work. And then there was the time he was seen texting on his Blackberry from inside the SCIF. It's all probably nothing. They know his recent divorce has been tough on him. It's not like he's a spy. But what if he is? What is the price of silence?

Computer-generated imagery and other visualization techniques reveal how it would look if all the water was removed from RMS Titanic's final resting place.

A Jewish teenager sets three goals: lose his virginity, become a writer, and survive World War II.

On August 21, 2017, millions of Americans will witness the first total solar eclipse to cross the continental United States in 99 years. While hordes of citizens prepare to flock to the eclipse’s path of totality, scientists, too, are staking out spots for a very different reason: to investigate the secrets of the sun’s elusive atmosphere.

The majestic Alaskan brown bear is the largest predator in southeastern Alaska, but everywhere, its ancient haunts are under siege. As the modern world closes in, the great bear’s world is shrinking and encounters between humans and bears are on the rise. Join researcher LaVern Beier as he uses cutting edge technology to protect this extraordinary species. To observe them on their turf, without risking life and limb, LaVern attempts to deploy National Geographic’s CRITTERCAM. Until now, CRITTERCAM has been used almost exclusively on marine animals. Vern and his colleagues are on the cusp of a revolution in terrestrial field science…the opportunity to vicariously walk with bears into the deepest corners of their habitats, where even great hunters barely dare venture.