A new review of ocean data suggests that more than 99.999 percent of the global deep seafloor has never been seen by humans.

These spiny or slimy ocean creatures display an astonishing diversity of appearances, behaviors and lifestyles—and many are ...

The never-before-seen footage of sea creatures struggling in fishing nets is featured in National Geographic’s new documentary Ocean with David Attenborough.

Hundreds of thousands of Velella velella, more commonly known as by-the-wind-sailors, are drifting onto the coastline.

There is currently no commercial deep-sea mining happening anywhere in the world, though companies have been pushing for years. They appear to have found a new champion in Trump.

LURKING beneath the ocean’s surface are a host of terrifying creatures most humans will only see in their nightmares. Yet, ...

Researchers collected more than 43,000 records of dives and assessed the photos and videos to determine how much of the bottom has been seen by humans.

The deep sea refers to the part of the ocean below 200 meters (656 ft.), at which light begins to disappear. Despite making ...

In a study published today in Science Advances, researchers from the Ocean Discovery League reveal that only a minuscule ...

Deep-sea submersibles have been diving for decades, but records show that we have still only explored a tiny area of the deep ...

Human eyes have only seen a tiny, tiny, tiny fraction of the areas of the world that are covered by deep water. Scientists ...

The deep ocean is understood as any portion of the Earth's sea that is deeper than 200 meters (656 feet). Those regions cover ...