Scientists encountered what may be a new species of seed shrimp, a translucent crustacean that swims at a depth of 50 to 200 meters. On a seamount in the Northern Atlantic, remote-operated vehicles shed light on what one researcher referred to as an underwater “continent.”

Clutching to the rocky cliffs was a menagerie of corals and sponges, as well as brittle stars and starfish, sea cucumbers, and worms. Some of the creatures are quite rare, not found anywhere else in the world — all the more reason to be mindful of the brilliant life thriving below the surface.