Far below the ocean's surface, in the dark depths of the deep sea floor ecosystem (about 3,000 feet or 1,000 meters deep), exists an entire world of deep sea creatures that humans rarely glimpse.

"Uncover ten unexplained sea creatures that were caught on tape. From mysterious deep-sea beings to unusual marine sightings, these recordings reveal the enigmatic life beneath the waves.

One new species was kept in captivity for years while another has become a local food delicacy, researchers said.