Sharks: Monster of the Media

Bigfoot has become a worldwide phenomenon. Hear firsthand accounts from eyewitnesses who've encountered the epic beast.

A 3-D documentary chronicling a sea turtle's journey across the oceans.

Documentary about Japanese pearl fishers.

A clash of true oceanic titans sees fights in the remote battlefields of Ascension Island. Tuna are often faster, fitter and bigger than the sharks.

There are six places on Earth believed to be actual entrances into Hell. They include a volcano in Iceland, a cave in the jungles of Central America, and a lake of fire in Africa. According to ancient myth and Christian legend, each is a passage to a terrifying underworld for the damned. Even today, some believe they are still portals. Eerily, they share striking similarities. Visit these six locations, and discover how the concept of Hell emerged in history and why it still evokes fear today.

In recent years, an unusual spate of deadly shark attacks has gripped Australia, resulting in five deaths in 10 months. At the same time, great white sharks have begun appearing in growing numbers off the beaches of Cape Cod, Massachusetts, not far from the waters where Steven Spielberg filmed Jaws. What's behind the mysterious arrival of this apex predator in an area where it's rarely been seen for hundreds of years? Are deadly encounters with tourists inevitable? To separate fact from fear, NOVA teams with leading shark experts in Australia and the United States to uncover the science behind the great white's hunting instincts. With shark populations plummeting, scientists race to unlock the secrets of these powerful creatures of the deep in their quest to save people -- and sharks.

A routine drone survey turns deadly when Ryan Johnson, a marine biologist based in South Africa, films a humpback whale being attacked and strategically drowned by a Great white shark. This is a total perspective shift for the creature.

"Kon-Tiki" was the name of a wooden raft used by six Scandinavian scientists, led by Thor Heyerdahl, to make a 101-day journey from South America to the Polynesian Islands. The purpose of the expedition was to prove Heyerdal's theory that the Polynesian Islands were populated from the east- specifically Peru- rather than from the west (Asia) as had been the theory for hundreds of years. Heyerdahl made a study of the winds and tides in the Pacific, and by simulating conditions as closely as possible to those he theorized the Peruvians encountered, set out on the voyage.

For 20-year-old Madison Stewart, nothing feels safer or more natural than diving straight into shark-infested waters. Since childhood, growing up by the Great Barrier Reef, she's treated these predators as family. But they're vanishing from existence, and because of their bad reputation, few people seem to care. Follow Madison on her mission to protect our sharks, a battle that began when she put her studies on hold, grabbed a camera, and set out to save these incredible, misunderstood creatures.

Deep Blue is a major documentary feature film shot by the BBC Natural History Unit. An epic cinematic rollercoaster ride for all ages, Deep Blue uses amazing footage to tell us the story of our oceans and the life they support.

Six young black men from Akron, Ohio, enter college, determined to redefine society's images and low expectations. Despite their confidence, the stark reality of being away from home brings a series of crises. Well trained in critical and metaphorical thinking, and unusually articulate about their inner lives, each of the protagonists guides us to his core. Since sixth grade, they have been part of an innovative mentoring program called 'Alchemy, Inc.' that uses mythological stories, drumming and writing. In the twice-yearly reunion workshops everyone speaks of his trials and his triumphs with authenticity, intelligence, honesty and heart. In turns quiet, thoughtful and exuberant, the six protagonists grow before our eyes, whether navigating racial provocations, or seeking support with new friends, estranged fathers and wise grandmothers.

Filmmaker Christina Karliczek Skoglund goes in search of the Greenland shark.

Researchers investigate whether orcas have begun hunting great white sharks off the coast of New Zealand.

A series of shark attacks that happened in the same patch of ocean, the remote islands of the Whitsunday in Australia.

See the world's first MRI scan of a great white shark as Ultimate Shark reveals the extreme engineering and predatory abilities of one of nature's most near perfect predators. Hear firsthand accounts of people who survived harrowing encounters, including a surfer who was bitten on the arm and leg, towed by the surfboard ankle strap and miraculously escaped only with minor injuries. National Geographic demystifies the true motives and power behind their behavior.

How one of the largest Bull Sharks ever caught off the quiet coast of Florida grew to become a giant of the ocean.

Scientists have discovered and investigate the reason behind the behavior of sharks swimming around in gangs even though they are viewed as solitary predators.

Peter Gimbel and a team of photographers set out on an expedition to find and film, for the very first time, Carcharodon carcharias—the Great White Shark. The expedition lasted over nine months and took the team from Durban, South Africa, across the Indian Ocean, and finally to southern Australia.

The Man Killers

There's a mysterious predator lurking in the depths of Australia's wild Southern Ocean, a beast that savagely devoured a great white shark in front of cinematographer David Riggs 11 years ago. Riggs's obsession to find the killer leads him to an aquatic battle zone that's remained hidden until now. Here, killer whales, colossal squid and great white sharks face off in an underwater coliseum where only the fiercest creatures of the marine world survive.