We've mapped the surface of Mars in more detail than the bottom of our own oceans. Over 80% of the seafloor remains unexplored, and the creatures that live down there make science fiction look ...

Known as Dalhousiella yabukii, the worm resides inside a glass sea sponge—a simple marine animal that forms a glass-like skeleton—in the cold, dark waters off the coast of Japan. And it’s just one of ...

A new blue octopus species, Microeledone galapagensis, was recently discovered near Darwin Island in northern Galápagos.

The ocean’s deepest reaches harbor some of the most alien and terrifying life forms on Earth. Far below where sunlight fades to eternal darkness, creatures have evolved in ways that seem to defy ...

Scientists have discovered over 110 new deep-sea creatures in the Coral Sea, with the number likely to exceed 200. The creatures were found in the Coral Sea Marine Park at a depth between 2,000m and 3 ...