The Coral Triangle is a region in the western Pacific Ocean that includes the waters of Indonesia, Malaysia, the Philippines, Papua New Guinea, Timor-Leste, and the Solomon Islands. It is home to the highest diversity of marine species in the world, including over 75% of all known coral species and over 2,000 species of reef fish. The region is important for both ecological and economic reasons, as it supports the livelihoods of millions of people through fisheries, tourism, and other industries. However, the Coral Triangle is also threatened by a range of human activities, including overfishing, pollution, and climate change.