Though sea spiders have thrived for millions of years in a variety of marine conditions—in cold Antarctic waters, on deep ...

From worms with squid-like tentacles to fish with teeth on their tongues, here are some of the most alien-looking creatures ...

A riotous photography collection from a recent underwater mission off the coast of Chile shows new and fascinating deep-sea creatures—including a “mystery mollusk,” a bioluminescent ...

A deep-sea fish species with unusual cheek patterns has been discovered in the South China Sea after it was listed on online seafood markets. The fish has been named Branchiostegus sanae because ...

To survive the deep ocean, sea creatures need all kinds of adaptations that give them alien-like appearances, like huge eyes and needle-like teeth.

In a fascinating video, researchers have revealed a new and bizarre see-through species of sea slug floating around the midnight zone of the deep sea.

The Trump administration wants to move ahead with deep sea mining. A mosaic of exotic creatures are at stake ...

Scientists on the US West Coast say they discovered three previously unknown species of deep-sea spider that could have a rare diet fueled by a common greenhouse gas.

A deep-sea fish species with unusual cheek patterns has been discovered in the South China Sea after it was listed on online seafood markets.

The deep sea is home to weird and wonderful creatures that, over millions of years, have evolved specific traits to survive the extreme conditions of their habitat. These adaptations to their ...