In the ocean's twilight zone, where the reach of the Sun fades to nothing, an epic migration begins every time night falls.

Beachgoers in one Southern California town had to run for their lives after two massive sea lions came out of the ocean and ...

A new study suggests that deep-sea life reaps the benefits of icebergs’ castoffs — a rare silver lining as a warming planet ...

For centuries, enormous fossilized teeth found along coastlines led people to believe dragons once roamed the Earth. The real ...

Six animals pulled from the deep ocean were so biologically distinct that researchers had to create entirely new taxonomic ...

These spheres from the abyss conceal creatures with startling biology.

For the first time, researchers have filmed the elusive goblin shark alive in the deep ocean where it naturally lives. The ...

Scientists tracked more than 17,700 kilometers of fishing activity to uncover a dramatic shift in dolphin behavior.

To build more efficient pumping systems, engineers might take inspiration from a tiny filter-feeding sea creature encased in a gelatinous structure known as a "mucus house" or "snot palace." New ...

In case you've faced some hurdles solving the clue, Sea creatures that resemble showy flowers, we've got the answer for you.