Somewhere in the North Atlantic, more than a kilometer beneath its surface, a cold-water coral reef stretches across an ...

This octopus can brood its eggs for nearly four years without eating. Here’s how this biological extreme has reshaped how ...

When we dream of landscapes, we might imagine rolling valleys or rugged mountains. But there is a whole landscape hidden from human view: the secret world of the seafloor.

Deep-sea waters are warming due to heat waves and climate change, and it could spell trouble for the oceans' delicate chemical and biological balance. However, a study published in Proceedings of the ...

The Trump administration wants to allow deep-sea mining for critical minerals near the American territories of Guam and the Northern Mariana Islands. Residents are worried about environmental impacts.

Leticia Carvalho heads a global authority that’s been struggling to set rules for a decade. President Trump’s aggressive push on ocean mining makes her task more urgent.

As deep-sea waters warm, scientists expected trouble for the microbes that help keep ocean chemistry in balance. Instead, researchers found that Nitrosopumilus maritimus can adapt to warmer, ...

The scientists examined the lineages of two groups of bivalves—marine invertebrates that include clams, oysters, mussels, and scallops—that successfully inhabit the deep sea. They found that some ...

The agency found the first-ever application to mine in international waters complies with U.S. law. Foes say the move is dangerous and illegal.

Beachgoers in Cabo San Lucas spotted two rare deep-sea oarfish near the shoreline in an unusual sighting.