For deep reef divers, descending into the ocean’s mesophotic layer can feel like exploring the moon. Discovering never-before ...

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 ...

The deep sea around Antarctica just got a whole lot weirder as researchers have discovered at least 30 previously unknown ...

Beneath the surface of our oceans lies a vast ecosystem so poorly understood that scientists estimate thousands of species remain undiscovered. The mesopelagic twilight zone—occupying roughly 60 ...

The carbonate compensation depth — a zone where high pressure and low temperature creates conditions so acidic it dissolves shell and skeleton — could make up half of the global ocean by the end of ...

In the deepest parts of the ocean, below 4,000 metres, the combination of high pressure and low temperature creates conditions that dissolve calcium carbonate, the material marine animals use to make ...

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 ...

(CNN) — Ancient glass sponges. A Barbie-pink sea pig sauntering along the seafloor. A transparent unicumber hovering in the depths. (CNN) — Ancient glass sponges. A Barbie-pink sea pig sauntering ...

Glowing sea animals use bioluminescence powered by luciferin to communicate, attract prey and defend themselves, turning the ...

More than one-fifth of the global ocean—an area spanning more than 75 million sq km—has been the subject of ocean darkening over the past two decades, according to new research. Ocean darkening occurs ...

London: The number of sea floor animals fell by 37 percent in a deep sea mining exploration zone, according to a study ...