Researchers discovered the octopus 1.8km below the shores of the Galápagos Islands in 2015, but are still figuring out exactly what this intriguing species is

A routine deep-sea survey off Southern California unexpectedly revealed massive, ancient sponge mounds, previously hidden in a well-explored area. These structures, vital nurseries for marine life, were found to be largely composed of dead sponges,

Known as Dalhousiella yabukii, the worm resides inside a glass sea sponge—a simple marine animal that forms a glass-like skeleton—in the cold, dark waters off the coast of Japan. And it’s just one of a massive trove of marine animal species that scientists say they recently discovered.

Scientists exploring deep underwater canyons off the coast of Western Australia uncovered a hidden world packed with bizarre and elusive marine life — including signs of the legendary giant squid. By analyzing traces of DNA floating in seawater from depths exceeding 4 kilometers,

Buried deep within the depths of the Pacific Ocean lies an incredible discovery of a huge limpet that survives at an extraordinary depth of 5,922 meters below water. Bathylepeta wadatsumi, the new species of marine snail,

A golf-ball-sized blue octopus collected nearly a mile beneath the Pacific Ocean in 2015 has been formally described as a new species — and in doing so, it has forced scientists to rewrite the textbook definition of the deep-sea octopus family it belongs to.

Scientists exploring deep underwater canyons off Western Australia have uncovered an unexpectedly rich world of marine life using environmental DNA collected from seawater thousands of meters below the surface.

Scientists have discovered over 110 new deep-sea creatures in the Coral Sea, with the number likely to exceed 200. The creatures were found in the Coral Sea Marine Park at a depth between 2,000m and 3,000m late last year by researchers onboard the vessel ...