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 new study offers the first direct evidence that deep-dwelling mesopelagic fish, which account for up to 94% of global fish biomass, excrete carbonate minerals at rates comparable to shallow-water ...

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 ...

A new study suggests that estimates of the health of the world’s fisheries may be too optimistic. By Manuela Andreoni Counting the number of fish in the ocean may well be one of science’s toughest ...

Researchers say the new footage of the deep sea fish may be the first live sighting of the creature in daylight near the ocean's surface Brenton Blanchet is an Associate Editor on PEOPLE's TV team. He ...

A new study has found that oceanographic connectivity (the movement and exchange of water between different parts of the ocean) is a key influence for fish abundance across the Western Indian Ocean ...

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 ...