How many species are threatened with extinction?

The IUCN Red List assessed 35,765 species spanning all biological classifications as teetering on the brink of termination in the annum 2020. As highlighted previously, this quantification is likely a conservative estimate, given the vast number of species that remain unevaluated.

The graphical representation delineates the count of species under jeopardy across distinct biological classifications. Given the meticulous studies dedicated to avians, mammals, and amphibians, their represented figures are more congruent with actuality. Meanwhile, classifications like insects, flora, and fungi — which haven't been as extensively scrutinized — likely have a substantial underrepresentation in their reported counts.