Vuelve a la vida

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.

Atmospheric soundtrack follows this compilation of nature footage that focuses on the ocean and various life forms that live, mate and die in it.

Terrifying footage of real life shark encounters is analyzed by experts with hopes of gaining new understanding of how sharks interact with humans.

A fascinating pictorial document: On an old, cluttered work ship, a man is helped on with a bulky, old fashioned diving suit. It's a complicated process, many layers and sections are carefully applied. He goes over the side. Some men row out to what looks like a wrecked barge and set dynamite. Then the diver returns and now laughs and acknowledges the camera. The other men, now safely away, blow up the barge.

Mysterious and only superficially explored by generations of the native Aborigines, Australia's Great Barrier Reef is one of the world's most extraordinary natural life systems. Twelve hundred miles long and made up of coral, it is the Earth's largest structure built by living things, in some places extending 120 miles into the sea. So many varieties of life call the reef home that more than a dozen species can be found within any square meter of its surface. This IMAX film brilliantly captures the visual splendor of this environment with splendid underwater photography typical of the format. Sharks, sea turtles, anemones, and the coral itself are the living subjects of the camera's probing eye. Overall, this documentary is a comprehensive look at this long-studied web of life that leaves a lasting impression of its depth and beauty.

Documentary about Japanese pearl fishers.

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.

Killer Sharks is a recreation of the world-famous attacks along the coast of Durban, South Africa, during the summer of 1957/1958. Called "Black December," these attacks partly inspired Peter Benchley's Jaws.

Something shocking is happening in the abyss around Guadalupe Island. Photos of great whites with strange scars believed to be from giant squids have surfaced. Dr. Tristan Guttridge leads a mission to get a glimpse into the battles between the two beasts.

Divers go to work on a wrecked ship (the battleship Maine that was blown up in Havana harbour during the Spanish-American War), surrounded by curiously disproportionate fish.