Dark oxygen was first discovered in 2015, but what is it? Learn how a deep-sea discovery could rewrite our understanding of ...

The surface boils, fish scatter, and the sea erupts in sound and motion. When humpback whales go on the hunt, the ocean transforms into a theater of chaos and coordination. In this episode, we dive ...

Could lumpy metallic rocks in the deepest, darkest reaches of the ocean be making oxygen in the ... that the oxygen detected was "trapped air bubbles" in the measuring instruments.

Decompression sickness can occur when a mammal swims to the ocean's surface too quickly, and the change in pressure produces lethal nitrogen gas bubbles that clog its blood vessels. As deep divers ...