A team of marine biologists set out to clock the top speed of the fastest shark in the ocean - the mako. Meanwhile, a second crew aims to prove that makos are ambush predators that will breach to kill their prey, just like the great whites.

Since 2008, every two years, in October, shark attacks strike Surf Beach, California. Now as October 2014 closes in, questions remain: will the attacks happen again? Is it the same shark? And, can DNA identify the great white shark responsible?

Deep below the oceans's surface live some of the strangest marine animals on the earth. Now, three expeditions are exploring those depths for sharks that glow in the dark. They are hoping for a close encounter in the strange domain of alien sharks.

We scoured the seas to bring you the greatest moments from Shark Week 2015! Only the closest calls, biggest bites and greatest gadgets made the cut. Then, we’re revealing your top picks for the best moments in Shark Week history.

A team of shark researchers head to Cuba to explore the most remote shark habitat in the world. 70 years after the largest great white ever recorded, a 23 ft. Great White named “The Cuban” was caught off the coast, a team of experts search for evidence of a population of large white sharks to prove the story is real.

The search for the predator that ate a 9-foot great white off the coast of Australia takes wildlife filmmaker Dave Riggs into the kill zone—a deep ocean battleground of great whites, killer whales and giant squid.

The ocean is a cruel place—full of predators driven to survive. But at the apex of the food chain are six swift and deadly sharks. These stealthy assassins exploit prey with specialized adaptations, making them the most fearsome predators on the planet.

Mysterious sharks threaten government divers in remote New Zealand waters. Attack survivor Jenny Oliver and researcher Kina Scollay are on a quest to find out if the mysterious sevengill sharks are targeting divers…and are they hunting in packs?

From the icy waters of the Arctic Ocean, to the tropical seas of Indonesia, researchers are getting closer to sharks than ever before. Join us on an epic journey around the globe documenting groundbreaking new research into these long misunderstood animals.

Shark expert, Greg Skomal and a team of engineers from the Woods Hole Oceanographic Institution embark on a mission to find out why Great White sightings in Florida are on the rise. It's the biggest study ever of Atlantic great whites.

The quest to photograph the largest great white shark continues as experts Andy Casagrande and Jeff Kurr join forces with Dickie Chivell at Guadalupe Island, Mexico. Theories suggest these mega sharks may come to feed and mate at this great white hot spot.

At nearly 18 feet and over 3,000 pounds, a record-breaking female great white shark nicknamed "Joan of Shark" roams the waters off Western Australia. Three shark experts follow an extraordinary 4,000-mile migratory path to find and tag her.

Fifty years ago, Rodney Fox barely survived a great white shark attack. Now he is trying to help sharks survive mankind’s increasing pressure upon the oceans. Join Rodney and his team as they study and tag great whites off the coast of South Australia.

In a remote corner of the Indian Ocean, Reunion Island has become the most dangerous place on the planet for shark attacks. After 7 deaths in 4 years, locals and scientists are in a race against time to find answers before another fatal encounter.

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