The ocean makes up the majority of the Earth's surface, so it makes sense that 95% of our seas are still unknown to us—there's just so much to explore. And we know even less about the deepest parts, ...

An "unusually fascinating" fish that is known to emit a bioluminescent glow thousands of feet beneath the ocean's surface has appeared on the Oregon coast. A local aquarium that posted about the fish ...

A team of science-minded kayakers and snorkelers in La Jolla Cove had the encounter of a lifetime when a dead oarfish washed to the ocean surface on Aug. 10, 2024. This deep-sea fish is incredibly ...

Mesopelagic fish, long overlooked in ocean chemistry, are now proven to excrete carbonate minerals much like their shallow-water counterparts—despite living in dark, high-pressure depths. Using the ...

A surprising new discovery suggests that tiny microbes living inside fish may be helping shape the chemistry of the world’s ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Some types of sea ...

These three fish are freaks, phantoms and mysteries of the deep. Here’s what we’ve learned from the rare glimpses we’ve had of their lives. The deep sea is one of Earth’s final frontiers. Given its ...