Mysterious case of Caribbean sea urchin die-off solved by scientists

Read MoreThe 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 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.