The critically endangered whitefin swellshark, a little-known deep-sea species, faces a grim future as climate change ...

This is only the second time the species has been recorded while alive. “I thought it was A.I.,” says fish biologist Kory Evans.

Deep-sea oarfish and anglerfish sightings near shores fuel speculation about impending disasters, but scientists remain ...

The fish was discovered in the depths of the South China Sea. Dubbed Branchiostegus sanae, or the “Mononoke tilefish,” this ...

Among the myriad creatures that populate our ocean, some stand out as having an outsized impact on the marine environment—shaping and maintaining habitats that themselves sustain countless other forms ...

A scary-looking creature with “devil” in its name was spotted close to the surface off Tenerife, a Spanish island.