Could lumpy metallic rocks in the deepest, darkest reaches of the ocean be making oxygen in the absence of sunlight?

In the cold, lightless Pacific Ocean deep, the seabed is scattered with metal-rich rocks coveted by miners—and huge numbers ...

The world's oceans are full of strange and fascinating creatures, many of which have never been seen by humans.

Deep-sea fish thrive in extreme pressure, darkness, and pollution, revealing new survival mechanisms and threats.