A recent analysis using high-resolution drone imagery has revealed that at least 97% of corals on a reef at Lizard Island in the Great Barrier Reef's north have died during a severe coral bleaching event. This event is considered one of the worst to ever affect the world's largest reef system. Scientists from various institutions conducted the study to track the bleaching and subsequent death of the corals. The findings highlight the devastating impact of coral bleaching on the Great Barrier Reef ecosystem.