A wildlife photographer has captured what are believed to be the first underwater images of the rare, elusive Ross seal.

Far below the ocean’s surface, where sunlight disappears and pressure reaches crushing levels, some of the planet’s strangest ...

In July and August scientists onboard the Schmidt Ocean Institute’s research vessel Falkor (too) spotted the oddities through the eyes of an underwater robot as they explored the Mar del Plata Canyon.

A transparent goby fish drifted through the darkness, its skeleton visible through paper-thin skin. Nearby, a sea slug wore ...

Getting enough oxygen in the water can be hard work. While fish and many other aquatic animals take air directly from the water through gills, other animals find ingenious ways to drag air bubbles ...

The underwater world often feels like something from another planet. Life in the seas and oceans remains a mystery to those of us on the surface—not only fascinating but also breathtakingly beautiful, ...

Deep-sea creatures are some of the most skilled survivalists in the world. They endure isolation, extreme temperatures, and ...

This secretive native of both sides of the Caribbean—from Belize to the British Virgin Islands—hides out on ledges and in caves of reefs up to 140 feet below the surface of the sea. Although not being ...

When we think of snow, we usually think of winter. But did you know that it is always snowing in the ocean? Read more about marine snow.

A six-year study off California’s coast shows how marine heat waves and noise pollution are silencing the ocean’s largest singers. Does saving the ocean start with hearing it? A blue whale swims near ...

Swirling underwater “storms” are aggressively melting the ice shelves of two vital Antarctic glaciers, with potentially “far-reaching implications” for global sea level rise, according to a recent ...