Researchers in Florida have moved 30 pieces of endangered elkhorn coral from ocean nurseries to a land-based hatchery to protect them from a possible mass bleaching event this summer. The scientists acted out of fear that rising water temperatures could kill the coral, which is already at risk of extinction. The relocation took place on Wednesday. The coral was taken from nurseries off the Florida coast and brought to a hatchery on land, where conditions can be controlled. Elkhorn coral is a key species for reef health, providing habitat for fish and protecting coastlines from storms. But it has been declining due to disease, pollution, and warming waters. Coral bleaching happens when stressed corals expel the algae living in their tissues, turning white and becoming vulnerable to death. If ocean temperatures stay high, bleaching can be widespread and deadly. By moving the coral to land, researchers hope to keep them safe until the ocean cools down. The effort is part of a larger project to save elkhorn coral from extinction. Scientists are also working to breed more resilient corals that can survive warmer waters. The relocated pieces will be monitored and eventually returned to the ocean if conditions improve.