A sea-borne pandemic that wiped out sea urchin populations in the Red Sea has spread and is taking out the species in parts of the Indian Ocean and could go global, scientists in Israel say.

The turquoise water of Hōnaunau Bay in Hawaii, an area popular with snorkelers and divers, is teeming with spiny creatures that threaten to push the coral reef “past the point of recovery ...

Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. This specimen is a Purple-spined Sea Urchin, which is a species of urchin found in the western Atlantic Ocean. Like ...

The killer of the "mystery novel"-like die-off has been linked to other widespread marine deaths, but this is the first time it's been linked to urchins, which are vital to coral reef survival.

The mystery killer behind a recent mass die-off of a once-common sea urchin species has been identified as a parasitic microorganism called a ciliate. Long-spined sea urchins (Diadema antillarum ...