Explore the mystery of quack-like sounds off New Zealand's coast in the 1980s that may hint at deep-sea communication.

"Everyone in the control room let out a loud 'Oooooh!' at the same time. We were all enchanted," a researcher said.

Scientists uncovered the "mystery mollusk," a strange glowing sea creature lurking in the ocean's midnight depths.

Both scientists and sailors alike have recorded unique, strange noises in the ocean for decades. They sound guttural, and ...

The newly described species of sea slug dwells in darkness in the ocean’s midnight zone, using a hood to capture prey with a ...

A sonar image suspected of showing the remains of the plane of Amelia Earhart has turned out to be a rock formation.

In January, ocean exploration company Deep Sea Vision suggested the search might finally be over after crewmembers stumbled ...

The mystery mollusk’s genus name, Bathydevius, is a play on the deep-sea animal’s "devious" nature that fooled researchers, ...

Advances in technology that enabled the discovery of a new species by California scientists may lead to a better ...

Formerly known as the 'mystery mollusk,' this glow-in-the-dark nudibranch is the first of its kind to be seen living in the ...