Some crabs have found an unusual ally lurking in the ocean's depths, a fuzzy colonial animal armed with venomous stingers ...

Director Tasha Van Zandt went to great lengths to make her documentary A Life Illuminated – and to enormous depths. More than ...

Hundreds of by-the-wind-sailors creatures wash up at St Bees in Cumbria due to strong onshore winds.

New footage from a Japanese fishing vessel captures a live giant squid at the ocean's surface, an encounter so unusual that ...

What else is hiding down there?

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

Every summer, many Australians head to the ocean to swim, surf, sail, kayak, and walk along the beach. But humans are not alone when we use the ocean. Fish, seals, dolphins, sharks, jellyfish, turtles ...

Scientists exploring the floor of the deep sea around the Cocos (Keeling) Islands in the Indian Ocean found a landscape teeming with deep sea life, some of which had never been seen before. Here are ...

Marine animals do not just struggle when ocean temperatures spike, they actually shrink, and a massive new study shows this pattern has been repeating for nearly 450 million years. Researchers built ...

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 ...