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 ...

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 ...

When Ted Judah goes scuba diving off the coast in Monterey Bay, he normally swims at the surface to the area above the dive site and then descends. But on the morning of Dec. 30, the water was ...