Could the largest shark that ever lived still be swimming our oceans?

Scientists say the megalodon disappeared approximately 3.6 million years ago. Yet for more than a century, experienced fishermen, sailors, explorers, and divers have reported seeing sharks so enormous they defied explanation.

In this episode of Dark Outdoors, Chester Moore investigates the enduring legend of the megalodon. From Zane Grey's famous encounter in the South Pacific to Australia's mysterious giant shark reports, the legend of Baja's "Black Demon," and other intriguing eyewitness accounts, we separate documented history from maritime myth.

But if these witnesses weren't seeing a living megalodon...what were they seeing?

Chester explores the remarkable reality of giant great white sharks, including the legendary catches of Frank Mundus and the famous Deep Blue, along with whale sharks, basking sharks, and the surprising discovery of the megamouth shark—a species science didn't even know existed until 1976.

Follow Dark Outdoors for more investigations into wildlife, true crime, history, conservation, and the unexplained where the natural world meets mystery.