Scientists discovered deep Arctic methane mounds that release gas, shape ecosystems, and inform climate risks.

Dynamic mounds made of methane at a depth of some 3,640 meters act like “frozen reefs” for a bizarre array of deep-sea ...

Far below the ocean’s surface, in a remote stretch of the Pacific between Hawaii and Mexico, scientists have mapped 788 ...

The 30cm-long (11.8in) juvenile was spotted at a depth of 600m (1,968ft), near the South Sandwich Islands in the south ...

Lanice spongicola lives on a glass sponge, a deep-sea sponge with a skeleton made of silica, that rises from hard rock. The ...

A newly discovered predatory “death-ball” sponge in the Southern Ocean hunts small prey with tiny hooks, revealing surprising deep-sea behaviour and hidden marine biodiversity.

Nearly 4,000 m beneath the Pacific, in water so dark that sunlight has never penetrated, scientists have stumbled on a new ...

As you get closer to the bottom of the ocean, it gets darker, denser and stranger. All light from the surface has been absorbed, and only the most adapted species can navigate the lack of oxygen in ...

In the deep sea, there are places where chemicals and nutrients seep out of the sediment and into the water. These chemosynthetics-based ecosystems were discovered in 1977, and in the decades since, ...

Meet the “ghost fish,” a phantom of the abyss. Here’s how we found the first ever proof of its existence just a few years ago. The deep sea is a part of the world that very few humans get the chance ...

Scientists off Japan found a deep-sea creature with 18 “dark yellow eggs” and discovered a new species, a study said. Getty Images/iStockphoto Thousands of feet down off the coast of Japan swam a pink ...