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 ...

How deep can fish live in the ocean? That question has captivated me for more than a decade. But my research team’s discovery of the deepest sea fish, announced this week, might not be the final ...