Biodiversity is not evenly distributed on the planet.
Some areas harbor far greater concentrations of living creatures than others.
The 25 biodiversity hotspots . It is home to 20,000 endemic plants and at least 1,500 endemic nonfish vertebrates, including a spectacular array of birds and amphibians. Featuring some of the largest islands in the world, Southeast Asia's Sundaland hotspot is home to a number of unique species, including the endangered orangutans of Sumatra and Borneo. The second-richest hotspot in endemic plants, Sundaland is also well known for its mammal diversity. This is the archetype of the five Mediterranean-climate hotspots and by far the largest.