Sargassum plants are a nuisance on some beaches, but they are a shelter and a feast for a complex and amazing variety of marine life ... a drop of water from the Sargasso Sea.

A passion for the infinitesimal leads a photographer to discover the countless creatures that live unseen in the ocean Photographs ... at various life stages teem inside a water droplet.

Researchers created DNA tools that detect deep-sea marine animals like squids and octopuses by analyzing ocean water.

Water is a key component of life. While humans can go much longer ... Meanwhile, naval surface ships can be at sea for up to nine months at a time. And the massive cargo ships that travel to ...

When Hans Hartman, a civil engineer, attempted to film the ocean depths in 1917, he pioneered what would become the first deep-sea ROV ... to go down into the water with a camera and photograph ...

Billions of pounds of plastic can be found in swirling convergences that make up about 40 percent of the world's ocean surfaces. At current rates plastic is expected to outweigh all the fish in the ...

Ocean ecosystems play a critical role in carbon ... Understanding how key players such as whales, plankton, seagrasses and other forms of sea life interact sheds light on Earth’s carbon cycle.

Advanced submersibles are enabling researchers to explore extreme environments, such as the hydrothermal vent fields near ...