Notable sightings along the way included the discovery of an extensive crinoid meadow at a depth of 9,100 meters (29,855 feet ...

A series of submersible surveys to nearly 10 kilometers in the deepest parts of Japan's ocean trenches have revealed seafloor biodiversity is shaped by depth, food supply, seismic activity and the ...

Far below the ocean’s surface, where darkness reigns and extreme pressures could crush even the strongest submarine, scientists stumbled upon a rather unexpected treasure: a previously unknown species ...