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Number of described species

The number of identified and named species, as of 2020. Since many species have not yet been described, this is a large underestimate of the total number of species
in the world.

0200,000400,000600,000800,0001 millionInsects1.05 millionArachnids110,615Molluscs80,460Crustaceans80,122Fishes35,672Reptiles11,341Birds11,158Amphibians8,250Mammals6,485Corals2,175