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Number of species evaluated for their level of extinction risk, 2020

The number of species evaluated for their extinction risk level is a small share of the total number of known species in many taxonomic groups.

05,00010,00015,00020,000Fishes21,415Birds11,158Insects10,105Molluscs8,847Reptiles8,236Amphibians7,166Mammals5,932Crustaceans3,188Corals864Fungi and Protists423Arachnids358