A blue groper eating a long-spined sea urchin fed to it by a diver. While it’s known that blue groper fish can eat long-spined sea urchins, the aim of this study was to reveal how often it happens in ...

On a research expedition off the coast of Rapa Nui, or Easter Island, a new species was discovered. Hal Cooks via Unsplash Rapa Nui, more popularly referred to as Easter Island, is known for its ...

Sea urchins have mixed reviews in the saltwater aquarium scene. Some people love them because they are fascinating to watch and make outstanding algae eaters. Others find them difficult to care for ...