5 Most Biodiverse Countries in the World

2. Indonesia

Global Biodiversity Index: 418.78

Indonesia claims the second-highest level of biodiversity globally. One of the 17 megadiverse countries, Indonesia is home to two of the world’s 25 biodiversity hotspots, 18 ecoregions featured in the World Wildlife Fund’s “Global 200,” and a 24 of Bird Life International’s Endemic Bird Areas. Moreover, Indonesia houses the world’s third-largest expanse of rainforest, trailing only the Amazon and Africa’s Congo Basin. These forests are inhabited by endangered species such as orangutans, critically endangered Sumatran tigers, and rhinos. In addition to its wealth of species, Indonesia boasts notably high levels of endemism.