Despite its isolation, the Mariana Trench is tainted by pollution, with microplastics found even in its remote depths, ...

A research expedition in the Tonga Trench filmed a Pacific sleeper shark, a slow-moving, opportunistic predator rarely seen ...

The fish that live and lurk in deep ocean waters almost defy explanation. In fact, marine biologists only recently discovered ...

The hadal zone, which encompasses the deepest parts of the ocean, including ocean trenches, is a largely unexplored and unique environment. This region, defined by depths greater than 6,000 meters ...

The discovery was made nearly 8,000 metres underwater, in the depths of the Pacific Ocean, near the coastline connecting Peru and Chile. In the waters of the Atacama Trench, at a depth of exactly ...

The Mariana Trench is the deepest place on Earth, and we're still in the dark about much of the life that calls it home. Here ...

Miles below, a deep-sea fish approached the camera’s bait then, changing its mind, swam backward to escape. The footage turned out to be a first-of-its-kind sighting — but it wasn’t the last.

the deepest trench on Earth. The Challenger Deep plunges to an estimated 10,935 metres (roughly 6.8 miles) below sea level - more than 1.2 miles farther from sea level than the peak of Mount Everest.