Coral reefs are some of the most diverse and valuable ecosystems on the planet. They provide habitat for countless marine species, protect coastlines from erosion, and support fishing and tourism industries. However, coral reefs are under threat from climate change, pollution, and overfishing. This tag page explores key research trends in coral reef study, conservation efforts, and the significance of these ecosystems in the broader context of environmental health and marine biology. It aims to provide accessible insights into both the beauty and vulnerability of coral reefs.