In the ocean's twilight zone, where the reach of the Sun fades to nothing, an epic migration begins every time night falls.

The snails and other mollusks around hydrothermal vents have evolved to thrive in extreme conditions, but mineral extraction ...

A new study suggests that deep-sea life reaps the benefits of icebergs’ castoffs — a rare silver lining as a warming planet ...

Six animals pulled from the deep ocean were so biologically distinct that researchers had to create entirely new taxonomic ...

Twenty-four species of deep-sea crustaceans that had never been documented before have been formally described from the ...

For all of humanity’s ventures to outer space, we’ve yet to see 99.999% of the deep-sea floor. In the latest subaquatic news, researchers discovered some 4,000 marine species, 88% of which were new ...

Thousands of meters below the ocean's surface lurk some gigantic creatures, much larger than their shallow-water brethren. Scientists have a few hunches for why this happens, but the debate continues.

An underwater voyage has revealed a network of creatures thriving at the bottom of deep-sea ocean trenches. In these extreme environments, the crushing pressure, scant food and lack of sunlight can ...

The vast array of organisms in the deep sea remains a mystery to humans. Now, marine biologists can add one more puzzle to the list. A collection of odd materials was discovered nearly four miles ...

Deep below the surface of the ocean, bacteria and critters that feed off nutrients spouting from hydrothermal vents met with a sudden wave of volcanic sediment, leaving them suffocated. Four months ...

A pill bug dwelling under a garden pot curls its body into a tiny armored ball as self-defense. Far below the ocean surface, ...