The ocean covers more than 70 percent of Earth’s surface, yet we’ve explored less of it than we have the surface of the moon.

Thousands of sea cucumbers blanket over two miles of the Seaside, Oregon, beach in a rare natural phenomenon. The translucent creatures can't return to the ocean on their own.

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.

In the deepest and coldest parts of the ocean, sea creatures — mainly invertebrates, or animals without backbones — can reach gargantuan proportions. Squids, sea spiders, worms and a variety of other ...

Visitors to Seaside might be surprised, and a little grossed out, to find thousands of transparent, blubbery, worm-like ...

Deep sea mining has disastrous consequences for marine life, many of which are still unknown to oceanographers.

Thousands of meters below the ocean's surface lurk some gigantic creatures, much larger than their shallow-water brethren. Scientists have a few hunches for why this happens, but the debate continues.

More than 5,000 animal species previously unknown to science live in a pristine part of the deep sea. Their home — called the Clarion-Clipperton Zone — sits in the central and eastern Pacific Ocean ...

Scientists say sea monster is a new kind of animal. This unidentified specimen belonging within Relicanthidae is a sea creature that was previously thought to be a giant sea anemone (order Actiniaria) ...