The ocean that contains the majority of the world's coral reefs is the Pacific Ocean. It hosts the largest and most diverse collection of coral ecosystems, particularly in regions like the Great Barrier Reef off the coast of Australia and numerous tropical islands. The health of these coral reefs is vital for marine biodiversity, providing habitats for countless species of fish, invertebrates, and other marine life. Unfortunately, coral reefs face significant threats due to climate change, pollution, and overfishing, highlighting the need for conservation efforts to protect these vital ecosystems.