Archaeologists have found a prehistoric human skeleton deep inside a flooded cave system on Mexico’s Caribbean coast.

A photographer captured this extraordinary site where whales' bodies lie in the shallows, with troubling repercussions for the deep oceans.

Scientists have discovered a new deep-sea mollusk living 18,045 feet beneath the Pacific Ocean, featuring an iron-coated tongue that reveals extraordinary evolutionary adaptation.

Scientists reveal humans once evolved from a single-eyed sea creature 600 million years ago; a ‘third eye’ that later shaped ...

Deep-sea researchers captured rare footage of a fascinating creature living approximately 62 miles off California's coast.

Sleeper sharks live extraordinarily long lives and can thrive in near-freezing ocean temperatures near Earth's poles.

Sharks are ancient creatures—even older than land dinosaurs —and they’ve evolved to swim in almost all the world’s ocean waters. Still, many scientists suspected that the animals didn’t live in ...

Coffinfish are some strange looking creatures that get their "sea toad" nickname for a good reason. Read here to learn more.

Off the coast of Argentina, the deep ocean is revealing secrets that could change everything we know about marine ecosystems. Recent discoveries have uncovered vast, uncharted coral reefs and species ...

A deep-sea camera captured the first-ever shark recorded in Antarctic waters — a 10- to 13-foot sleeper shark swimming 1,608 feet below the surface.

Many experts had thought sharks didn’t exist in the frigid waters of Antarctica before this sleeper shark lumbered warily and ...

Scientists propose that eukaryotes formed when an Asgard archaeon entered into a close partnership with an alphaproteobacterium. Over time, the two organisms became permanently linked. The ...