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Share of described species that have been evaluated for their extinction risk, 2020

In many taxonomic groups, very few described species have been evaluated for their extinction risk level. This means the estimated number of species at risk of
extinction in these groups is likely to be a significant undercount.

0%20%40%60%80%100%Birds100%Horseshoe Crabs100%Mammals92%Amphibians87%Reptiles73%Fishes60%Corals40%Plants12%Crustaceans4%Insects1%Red Algae<1%Arachnids<1%Fungi and Protists<1%