In 1917, a civil engineer pioneered the first deep-sea vehicle to attempt filming underwater. A century later, we have James ...

Hidden in the abyss of the Atacama Trench, Dulcibella camanchaca reveals itself as a unique predator adapted to the darkness.

The deep sea, covering approximately 65% of Earth's surface, has long been considered a biological desert. In this extreme ...

An exploratory expedition describes two deep-sea, low-oxygen ecosystems in the Red Sea, including some surprising fish. The ...

Challenger Deep, the Earth's deepest point, lies in the Mariana Trench. Discover its extreme conditions, exploration history, ...

In this edition of “Ask a Marine Biologist,” Dr. David Shiffman discusses a challenging environment for marine life.

On the abyssal plains, at depths between 3,000 and 6,000 meters, polymetallic nodules are scattered across millions of square ...

Mining of polymetallic nodules from the seabed might lead to significant and long-lasting ecological changes -- both in the mined area, where surface sediments and the fauna living in and on it are ...

The sea cucumber’s color is “unique,” researchers said, and its smaller number of tentacles (15 compared to 18 found in other related species) sets the animal apart. The species earns its name from a ...