In 2015, nearly half of Hawai?i’s coral reefs were affected by the most severe bleaching event to date. Coral bleaching occurs when warmer-than-normal ocean temperatures prompt corals to expel the algae that normally live inside them and on which the corals rely for food.
Bleaching events are dismaying, but corals can sometimes recover, while others resist bleaching altogether. In a new study in the journal Proceedings of the National Academy of Sciences, researchers led by Katie Barott of the University of Pennsylvania found that these battle-tested, resilient corals could thrive, even when transplanted to a different environment and subjected to additional heat stress. The findings offer hope that hardy corals could serve as a founding