Cristina Zenato and the Reef Shark Connection

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.

A routine drone survey turns deadly when Ryan Johnson, a marine biologist based in South Africa, films a humpback whale being attacked and...

On a hot summer day, a young man from Philadelphia goes for an afternoon dip; when he is 40 feet from shore he gets attacked and dies; five days...

In Australia, sharks have recently been recorded with unusual prey-including other sharks. In order to figure out what has caused this shift in diet,...

Johnny Knoxville sends Steve-O, Chris Pontius, and new Jackass cast members on a Shark Week mission for the ages. They'll dial up a series of shark...

Whether it's the biggest great white, the most photographed tiger shark, or the shark known for jumping 100 feet up out of the water, we're diving...

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...

Chris Hemsworth has a real passion for sharks. The Hollywood star talks to experts to find out more about the apex predators of the oceans.

"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...

For 20-year-old Madison Stewart, nothing feels safer or more natural than diving straight into shark-infested waters. Since childhood, growing up by...

A team of explorers set out to explore the sea and land of the remote Pitcairn Islands

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...