Elkhorn embryos (IMAGE) Penn State Caption Developing embryos of the endangered elkhorn coral. New research shows that flash-frozen sperm collected from corals in Florida and Puerto Rico can be used to fertilize coral eggs from hundreds of miles away in Curaçao. The technique could be used as a conservation tool by introducing genetic variation into endangered corals and potentially accelerating their adaptation to climate change. Credit Kristen Marhaver Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.