The ocean covers over seventy percent of the planet, yet we've mapped Mars more thoroughly than our own seafloor. But ...

"They are Silent Teachers," one researcher said.

In the ocean's twilight zone, where the reach of the Sun fades to nothing, an epic migration begins every time night falls. It could also have an outsized effect on our climate.

An endangered sea turtle named Lucky washed up in Nova Scotia last year. Scientists are trying to solve the mystery of why ...

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 ...

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 ...

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

Living nearly 900 meters underwater, this isopod evolved unusual adaptations to thrive in the world’s most food-scarce ...

Scientists have uncovered plastic pollution in one of Earth's most isolated environments, challenging the long-held belief ...

Somewhere beneath tropical waves, a sea slug the size of a house cat pulls off a move that stops divers cold. Meet the ...

From mysterious colossal squid to the ferocious pram bug, these creatures are stranger than fiction. Found in the depths of the Pacific Ocean, the flower hat jellyfish (Olindias formosa) glides with ...

Dive into the deep! See 25 massive sea creatures caught on camera, from blue whales to colossal squid. Explore rare footage ...