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They represent just 2.3% of Earth\u2019s land surface, but between them they contain around 50% of the world\u2019s endemic plant species and 42% of all terrestrial vertebrates. Overall, Hotspots have lost around 86% of their original habitat and additionally are considered to be significantly threatened by extinctions induced by climate change. Spatial data for the five highest biodiversity wilderness areas as defined by Conservation International. 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