In the cold, dark depths of the Arctic Ocean, a feast of the dead is under way. A vast community of sponges, the densest group of these animals found in the Arctic, is consuming the remains of an ...

Stretching for nearly 80 miles across the seafloor of the central Arctic, the Langseth Ridge is craggy, barren, and generally inhospitable. And it should be: Unlike more productive oceans, few ...

Sea sponges “sneeze” in slow motion to get rid of the sand and pollutants that they suck into their bodies, and the expelled mucus may be an important food source for other marine organisms. Taking up ...