To get to the bottom of it, they looked at the fish’s anatomy and physiology and discovered something curious in their gills.

Far below the ocean’s surface, where sunlight disappears and pressure reaches crushing levels, some of the planet’s strangest ...

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 ...

Many of the fish lurking in the depths of the ocean resemble the alien villains of horror films, with gargantuan teeth, glow-in-the-dark bodies and bulging eyeballs. But why do these fish have such ...

Where water once stood is now an arid, dry, open landscape in western Kazakhstan punctuated with low-lying shrubs. Only when you finally reach the Little Aral Sea, known as Kishi Aral, can you feel ...

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 ...

Speckled sea trout, also known as spotted sea trout, are a popular inshore gamefish species found across the eastern and southern coasts. While they resemble their freshwater cousins in looks, these ...