At the bottom of the world’s trenches, there’s a fish that shouldn’t exist. Here’s how it earned the title of the ...

Scientists have uncovered why big predators like sharks spend so much time in the ocean’s twilight zone. The answer lies with ...

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 ...

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 ...

"It's a whole new way of looking at what's in the ocean." In this undated file photo, a large group of yellowfin tuna is shown in the waters off Vibo Valentia, Calabria, Italy. Giordano Cipriani/Getty ...

Ashlee Lillis’ interview subjects don’t talk. But they have plenty to say through grunts, growls, clicks and other odd noises. “I put my hydrophone — which is our underwater microphone — on the end of ...

A small fossil reveals that the largest freshwater fish, Otophysans, emerged in the sea, not in rivers, changing the ...

A scary-looking creature with “devil” in its name was spotted close to the surface off Tenerife, a Spanish island. By Victor Mather Strange things live in the depths of the ocean. Even the light of ...

The fish was found at 200 to 2,000 meters below the surface. At least 16 types of recently discovered deep-sea fish are among the darkest creatures ever found, according to a study published Thursday.

MUYNAK, Uzbekistan (AP) — Toxic dust storms, anti-government protests, the fall of the Soviet Union — for generations, none of it has deterred Nafisa Bayniyazova and her family from making a living ...

A tiny fossil fish from Alberta is forcing scientists to rethink a story that has sat quietly in textbooks for decades. It is ...