The world's oceans are big and dark and deep. They cover approximately 70% of the planet’s surface and contain a huge portion of Earth’s biodiversity. If you want to find some of the weirdest ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Scientists sampled fish living in the Pacific's Mariana Trench and trenches in the Indian Ocean. ...

A genetic analysis of the hadal snailfish, the deepest-dwelling known vertebrate species, has suggested a number of key adaptations that allow it to survive more than 6,000 metres under the sea. The ...

Snailfish living in deep-sea trenches in the Pacific and Indian oceans may have wider geographic distributions than previously thought, according to a researcher at The University of Western Australia ...

The deep sea, covering approximately 65% of Earth's surface, has long been considered a biological desert. In this extreme environment—particularly in the hadal zone at depths greater than 6,000 ...

The Mariana snailfish lives nearly 27,000 feet underwater, but has features that help it adapt to intense water pressure and cold. Physiological limits may prevent fish from surviving in deeper water.