Chart · Our World in Data
ChartOur World in Data
Number of species threatened with extinction
The IUCN Red List has assessed the extinction risk of only a small share of the total known species in the world. This means the number of species threatened with extinction is likely to be a significant underestimate of the total number of species at risk.
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International Union for Conservation of Nature Red List of Threatened Species (2025)
Attribution: IUCN
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