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

They are also part of complex offshore ecosystems that are easy to overlook and difficult to study.

More than 1,100 new marine neighbors The Ocean Census, a global biodiversity initiative funded by the Nippon Foundation, ...

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

Transparent sea cucumbers, bowl-shaped sponges, and pink sea pigs are some of the fascinating animals discovered during a deep-sea expedition to the Pacific Ocean. In March, a 45-day research ...

From shallow reefs to pitch-black depths, the ocean is alive with sparkling lights. Fish, squid, clams and plankton have found a wide range of ways to glow, shimmer and flash, lighting up the dark ...

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 ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Researchers have ...

WASHINGTON, Oct 17 (Reuters) - A deep-diving robot that chiseled into the rocky Pacific seabed at a spot where two of the immense plates comprising Earth's outer shell meet has unearthed a previously ...

The remarkable discovery of animal life beneath the seafloor shows that life finds a way even in the most extreme environments, potentially boosting hopes for finding life beyond Earth. Reading time 4 ...