A region of the Pacific Ocean that’s larger than Switzerland is now fully protected from fishing, thanks to the creation of a massive new marine sanctuary in the Marshall Islands. The Marshall Islands ...

A scuticociliate parasite is causing mass die-offs of sea urchins across the Caribbean, Red Sea and Indian Ocean, leading to ...

Rising mountain peaks and sharp rock formations cover the ocean floor, with corals, sponges, fish, and tons of sea creatures ...

Nearly a dozen miles off the California coast on a foggy October morning, a crane lifts a boxy yellow robot off the deck of the research vessel Rachel Carson and lowers it into Monterey Bay’s choppy ...