National Geographic Channel HDTV (NGCHD)

Experts investigate the first shark attacks ever recorded on Bali's coast. (Repeat).

In 2021, a spate of seven shark attacks rocks Florida's Treasure Coast, and beachgoers want to know why. (Repeat).

Five shark attacks in just two summers has South Carolinians scared. (Repeat).

A series of fatal attacks rocks the South Pacific paradise of New Caledonia. (Repeat).

(Repeat).

What happens when two of the world's deadliest predators go head-to-head?! (Repeat).

Shark encounters off the coast of California are skyrocketing. Now, a team of researchers is on a mission to investigate a newly discovered white shark hot spot close to popular beaches and determine how many great whites are out there. Their expedition will bring them face-to-face with some of the biggest sharks on the planet. (Repeat).

Marine biologists investigate why sharks attack boats. (Repeat).

Big and dangerous predators are invading unexpected waters, from golf courses and swimming pools to lakes and backyard keys. Through analyzing user-generated footage, shark experts get to the bottom of how and why sharks seem more willing than ever to meet us on our own turf. In a bizarre twist, people encountering sharks in unexpected places are called to urgent action. (Repeat).

Featuring breathtaking shark behavior, covering a wide variety of shark species that call the United States coastline home. Included: existing archival footage; original and rarely seen shark footage; as well as shark attack victim interviews. (Repeat).

Scientists investigate the megalodon, a gigantic shark that took over the oceans. (New).

Marine biologists investigate why sharks attack boats. (Repeat).

Featuring breathtaking shark behavior, covering a wide variety of shark species that call the United States coastline home. Included: existing archival footage; original and rarely seen shark footage; as well as shark attack victim interviews. (Repeat).

Scientists investigate the megalodon, a gigantic shark that took over the oceans. (Repeat).

(Repeat).

A series of fatal attacks rocks the South Pacific paradise of New Caledonia. (Repeat).

Experts investigate the first shark attacks ever recorded on Bali's coast. (Repeat).

Six shark attacks occur in New York on July Fourth, turning it into a terrible holiday. (Repeat).

Paid Programming. (Repeat).

Paid Programming. (Repeat).

Every 3 seconds an American's identity is stolen. Just how safe is your 401k? Your bank account? Your home? Your credit? Crime Reporter Tom Morris Jr. investigates the identity theft epidemic. Find out how you can help protect yourself with LifeLock.

Matt's pain from his 20 year old lost limb is solved.

Paid Programming. (Repeat).

Paid Programming. (Repeat).

In 2015, Australia is under siege from nine terrifying shark attacks. (Repeat).

Examining the explanation for a rise in shark attacks in Maui between 2012 and 2013, which proved to have been hiding in plain sight all along. (Repeat).

The waters of Cancun suddenly become a hotspot for shark attacks between 2011 and 2013. (Repeat).

Dubbed "the world's deadliest beach," Port St. Johns in South Africa has seen 10 shark attacks in eight years. Experts investigate the mysterious spate. (Repeat).

In 2006, the Oregon coast is plagued by an alarming anomaly: three shark attacks in three months. (Repeat).

Four separate shark attacks occur in the north of San Francisco over the course of six months. (Repeat).

Shark-infested surf spots are visited to relive the harrowing encounters. (Repeat).

Sharks go head-to-head with surfers, scientists, sea lions, even whales. (Repeat).

In the oceans of Ascension Island, yellowfin tuna and mako and tiger sharks are all apex predators, but to these sharks, yellowfin tuna are the ultimate prize. (Repeat).

The two biggest of the big three. Great Whites and Tiger sharks are two of the most dangerous predators in the ocean. And they get big – up to 20 feet and 18 feet, respectively. But can they grow even larger than that? Where can we find the world's biggest? Two teams of scientists are diving in to uncover the secrets of these powerful and majestic creatures. (Repeat).

A clash between bull sharks and a hammerhead launches an investigation. (Repeat).

Researchers investigate if orcas are hunting great whites in New Zealand. (Repeat).

The 360 team investigates a shark attack on a foil boarder. (New).

The 360 team investigates a mysterious cluster of shark bites. (New).

Researchers investigate if orcas are hunting great whites in New Zealand. (Repeat).

The 360 team investigates a shark attack on a foil boarder. (Repeat).

The 360 team investigates a mysterious cluster of shark bites. (Repeat).

Four separate shark attacks occur in the north of San Francisco over the course of six months. (Repeat).

In 2006, the Oregon coast is plagued by an alarming anomaly: three shark attacks in three months. (Repeat).

Dubbed "the world's deadliest beach," Port St. Johns in South Africa has seen 10 shark attacks in eight years. Experts investigate the mysterious spate. (Repeat).

The waters of Cancun suddenly become a hotspot for shark attacks between 2011 and 2013. (Repeat).

Paid Programming. (Repeat).

Matt's pain from his 20 year old lost limb is solved.

Paid Programming. (Repeat).

Paid Programming. (Repeat).

Paid Programming. (Repeat).

Paid Programming. (Repeat).

Marine biologists investigate why sharks attack boats. (Repeat).

What happens when two of the world's deadliest predators go head-to-head?! (Repeat).

Shark encounters off the coast of California are skyrocketing. Now, a team of researchers is on a mission to investigate a newly discovered white shark hot spot close to popular beaches and determine how many great whites are out there. Their expedition will bring them face-to-face with some of the biggest sharks on the planet. (Repeat).

Big and dangerous predators are invading unexpected waters, from golf courses and swimming pools to lakes and backyard keys. Through analyzing user-generated footage, shark experts get to the bottom of how and why sharks seem more willing than ever to meet us on our own turf. In a bizarre twist, people encountering sharks in unexpected places are called to urgent action. (Repeat).

Some shark species in the South African oceans are highlighted. (Repeat).

Dr. Michael Heithaus sets out to reveal the connection between sharks and volcanoes. (Repeat).

Free-divers and conservationists risk their safety to separate shark attack myths from realities from some of the world's most shark-infested waters off the coast of South Africa. On location are shark attack victims, who tell their stories and enter the water for the first time since their traumatic encounters. (Repeat).

Scientists investigate the giant tiger sharks of Norfolk Island. (Repeat).

Discover the secret life of baby great whites right off New York City. (Repeat).

Comedians and experts react to outrageous videos of the sharks that broke the Internet. (Repeat).

Ultra-athlete Ross Edgley pits himself against four legendary sharks. (Repeat).