Dan Nachtrab

Two teams of experts go to extraordinary lengths to take shark science into the wild as they investigate two of the most iconic shark superpowers - speed and bite force.

Shark scientist Dr. Michael Heithaus embarks on a mission to reveal the mysterious connection between sharks and volcanoes.

The world's leading scientists and cinematographers relive 5 extraordinary shark feeding events. From being surrounded at night by 700 grey reek sharks, a 300-strong gathering of blacktip, dusky and bronze sharks feeding on thousands of bait fish, to the spectacular sight of more than 200 blue sharks feeding on the carcass of a seven ton whale; the Great Shark Chow Down is an epic celebration of sharks from around the world.

In the mountains of Peru, an environmental scientist discovers ancient artifacts submerged beneath the headwaters of the Amazon; his findings could save this sacred landscape from mining devastation.

Gorillas and Chimpanzees struggle for power and dominance within their clans.

All across YouTube, viral videos abound of great whites and other sharks attacking boats with a ferocity and anger that has never been seen before. The question is, why? Is this simply a case of more people having cameras to video the behavior, or is something else happening? Dr. Mike Heithaus and Ph.D. candidate Sara Casareto set out to investigate what’s causing this clash between sharks and boats.

A Tubi original documentary that delves deeply into one of the most famous and exploited hauntings in the United States.

The discovery of Gobekli Tepe 20 years ago changed our understanding of the history of humankind. Now, newly-discovered skull carvings reveal even more about how and why civilized societies developed.

For years, the smaller, unremarkable-looking bull shark has come in third behind the great white and tiger sharks when it comes to deadly attacks on humans. But as climate change warms the world's waters, and its territory begins to spread, the bull shark enters the ring to prove its worth and leave with the title of the world's most dangerous shark.

Earthquakes, tsunamis, volcanic eruptions, and extreme weather. Has Earth always been this way? Featuring footage of top geologic hot spots on every continent, the film traces the scientifically-based story of the 4.5 billion-year-old Earth, from the core to the crust and up into the atmosphere.

In the darkest days of World War II, St. Peter's was shrouded in the shadow of the swastika. But even as the Führer surrounded him, the Pope was plotting a secret counter-offensive. Wartime Pontiff Pius XII has been derided for his public silence about the Holocaust. But evidence suggests his silence may have been subterfuge.

A followup to CET's Emmy Award-winning documentary, Cincinnati Parks: Emeralds in the Crown, this documentary takes a closer look at the history of Ault Park. The park was donated to Cincinnati by Levi Addison Ault, who also led the first Board of Park Commissioners and developed a plan for a city-wide park system. Like Eden Park, grand architecture, breathtaking landscape and community events draw Cincinnatians to visit. The history and architecture of the park's iconic pavilion is explored, as well as monuments and other pieces of public art.

The B-17 Flying Fortress became an icon of American air power in World War II, but its legacy is written by the stories of the crews who flew it. Today, of the more than 100,000 veterans who flew on board of B-17 bombers during the war, there are only a handful remaining-but through years of searching, a few of the final survivors were brought together to tell this story one more time.

Behind Hollywood's iconic landmarks lies a realm of eerie legends and ghostly tales. Discover the chilling stories of Tinseltown's most haunted sites.

Plunge into the Pacific with researchers and cinematographers and see the ocean’s rare and dazzling creatures in a way never before seen on television. The show examines an ocean that covers a third of the Earth’s surface.

A look ahead at the cataclysmic events that could extinguish the human race.

In 1993, three teenagers were believed to be responsible for the brutal murder of three eight-year-old boys in West Memphis, Arkansas. Experts delve deep inside the investigation of this triple homicide, exploring the evidence and possible motives.

A documentary competition show that chronicles the lives of riders competing in the high-stakes sport of horse reining. The contenders are determined to elevate and preserve the cowboy tradition as they guide horses through precise patterns of circles, spins and stops. Run for a Million serves as the culmination of the series, where the riders compete for a $1 million purse.

Every day, 3 million airline passengers travel into the United States— and every one of them is screened and their baggage checked by one of the 40,000 officers who work on America’s front line. This series documents the challenges faced by CBP at four of the busiest airports in the US including Atlanta, Honolulu, Detroit, San Francisco and Newark. From career drug smugglers and human traffickers to less serious visa and passport defaulters, everyone who comes into the United States by air is subject to scrutiny.

A series that explores secret societies, mysterious symbols and notorious locations.

This series will go back through the record to explore life-altering, earth-shattering, unforgettable events using a combination of carefully selected archive, cutting edge CGI and informative scripting in this popular science format. As well as exploring spectacular archive, illustrating the full toll these disasters can take, we'll dig into the science behind each event, shining a light on the most fascinating elements and giving an understanding on how and why these events occur.

Follows Dept of Homeland Security officers at five different airports across the country, from San Francisco, Detroit, Newark, Atlanta, and Honolulu, as they search for contraband both leaving and coming into the US.

The 17,000 islands that comprise the nation of Indonesia stretch more than 3,000 miles along the equator, bridging Asia and Australasia. Indonesia’s natural habitats vary widely. On some islands, tropical forests climb from steamy lowlands to mountain slopes. On others, parched savannah thrives. Coral reefs line thousands of tranquil atolls, while relentless waves batter rocky cliffs on other shores. In Papua, the mountains reach so high that permanent ice caps top their peaks, surrounded by barren alpine tundra. These wildly ranging habitats are home to an incredible number and diversity of living creatures - this iconic and landmark series is a celebration of Indonesia’s most spectacular locations and incredible wildlife.

Uncovering the secrets of the most secret of secret societies, the Freemasons, who are intertwined with American history.