Scientists have uncovered why big predators like sharks spend so much time in the ocean’s twilight zone. The answer lies with ...

By Liz Kimbrough A transparent goby fish drifted through the darkness, its skeleton visible through paper-thin skin. Nearby, ...

A mining-machine test on the deep-ocean floor resulted in species diversity declining by roughly 32% in the tracks of the ...

A cnidarian is attached to a dead sponge stalk on a manganese nodule in the Clarion-Clipperton Zone. Diva Amon and Craig Smith, University of Hawaii at Mānoa Picture an ocean world so deep and dark it ...

For decades, oceanographers have known that something did not add up in the deep sea. Huge predators like sharks and tunas were spending long stretches in the dim “twilight zone,” yet the known prey ...

For deep reef divers, descending into the ocean’s mesophotic layer can feel like exploring the moon. Discovering never-before-seen marine species is part of the mission. The deep diving team heads ...

In a fascinating video, researchers have revealed a new and bizarre see-through species of sea slug floating around the midnight zone of the deep sea. It was first discovered in California by Monterey ...

Deep-sea mining is threatening vital marine life in the ocean’s “twilight zone,” reveals new research. The findings raise "urgent concerns" about long-lasting effects if large-scale commercial mining ...

Bone-eating zombie worms vanished from Pacific canyons during a 10-year study, raising concerns that oxygen loss is altering ...

Giant phantom jelly sightings are extremely rare, but recent footage shows this extraordinary deep-sea jellyfish in all its ...

Scattered across an abyssal plain known as the Clarion-Clipperton Zone (CCZ) are polymetallic nodules that are a potato-sized prize for mining companies in search of materials needed for humanity's ...