The new species belongs to the Clavelina genus of sea squirts. Tiny and strange, the animal measures just 20 millimetres long ...

Stars twinkle overhead, but under the sea, stars huddle together. Sea stars, that is! Sea stars (Asteroidea), commonly known ...

A study led by Associate Professor Kelton McMahon at University of Rhode Island's Graduate School of Oceanography has found that food webs on tropical reefs are more fragile than we once thought.

“The sea slug Elysia chlorotica is a small, unassuming creature that performs a remarkable feat: It eats algae and steals its ...

Floating about 500 feet offshore of Illinois Beach State Park, Hillary Glandon tightened her scuba goggles, grabbed a small ...

“Guests tell me, ‘I hoped this place would look as good as the pictures. It’s even better,’” says Armando Kraenzlin, general ...

They’ve been crawling across the seafloor for more than 500 million years – predating the dinosaurs – yet sea stars remain some of the most misunderstood animals on Earth – if they’re even recognized ...

Divers in Japan have uncovered a fascinating new sea creature, Clavelina ossipandae, that resembles a panda skeleton and ...

A strange sea creature discovered in Japan, resembling a skeletal panda, turns out to be a new species of Clavelina tunicate.

Conservationist Ying Pemika Choovanichchanon holds a small basket in her hands, careful not to disturb the leathery brown ...

A startling new study shows that the waters surrounding Hawai‘i are heading toward levels of ocean acidification not seen in thousands of years—and fast. Even under the most optimistic emissions ...