Summary:

- Researchers have discovered heat-tolerant coral species living in the Great Barrier Reef that could help protect the reef from the effects of climate change.
- These corals, known as "hidden gems," are able to withstand higher temperatures and could potentially be used to help restore and replenish areas of the reef that have been damaged by bleaching events.
- The discovery of these heat-tolerant corals provides hope for the future of the Great Barrier Reef, which has been heavily impacted by rising ocean temperatures and other environmental stressors.