Unlike the charismatic sharks often spotted near the surface -- hammerheads, great whites, and tiger sharks -- the sixgill spends most of its life in the deep ocean, some 700 feet to 3,200 feet ...

Rare sixgill shark sighting deep in ocean amazes scientists. Raw video: Rarely-seen shark spotted 490-feet below surface near Desolation Sound in British Columbia.

MELBOURNE, Fla. — Lurking in the darkness with large green eyes, sixgill sharks kept their genetic secrets hidden amid the ocean depths since before the age of the dinosaurs. Until now. Toby ...

Ocean researchers trying to learn more about super deep water species often encounter complications. Take efforts to track the elusive bluntnose sixgill shark, a prehistoric beast that never surfaces.

Far from being a wild goose chase, they caught two of the sharks – which can reach ten feet and 400 pounds – in just two hours. "When we saw it come up there was a lot of hooting and hollering ...

OceanX scientists, including Melissa Márquez, attempt to attach a camera tag to a sixgill shark from a submersible at a depth of more than 800 feet. They journeyed so deep hoping to capture the ...

Bluntnose sixgill sharks are deep-sea giants with fluorescent blue-green eyes. In the open ocean, they usually cruise thousands of feet below the surface. But between June and September, they rise ...

This beast puts “Jaws” to shame. A massive bluntnose sixgill shark was captured on video lurching toward a submarine that was filming it. The shark was about 20 feet long — nearly… ...

He's descended 2,500 feet into the ocean depths in search of the sixgill shark, ventured into the halls of top R&D laboratories, and interviewed some of the most fascinating scientists in the world.

Two shark species have appeared in inland U.S. waters more than 180 miles from their usual coastal hunting grounds, surprising fishermen and shocking scientists. Now scientists have found eleven ...

MELBOURNE, Fla. — Lurking in the darkness with large green eyes, sixgill sharks kept their genetic secrets hidden amid the ocean depths since before the age of the dinosaurs. Until now. Toby ...