What started out as an underwater, late-night adventure for marine biology students became a dive they would never forget ...

Sleeper sharks live extraordinarily long lives and can thrive in near-freezing ocean temperatures near Earth's poles.

This is the terrifying moment student divers came face-to-face with an extremely rare deep-water shark off California. Murky footage showed the prickly shark suddenly appear out of the darkness during ...

A Florida angler caught a rare, milk-white shark off the coast of Jupiter, sparking a debate among experts about whether it's albino or leucistic.

Caught on camera: A sleeper shark has been spotted in the deep, frigid waters of the Antarctic Ocean for the first time on record. The post Rare sighting: Shark caught on camera in some of world's ...

Researchers filmed a 10-to-13-foot sleeper shark off the South Shetland Islands, in what may be the first recording of the ...