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Critically endangered (CR) species face an extremely high risk of extinction in the wild. As of January 2020, the International Union for Conservation of Nature (IUCN) listed 203 critically endangered mammalian species, including 31 which are tagged as possibly extinct. [1] [2] Of all evaluated mammalian species, 3.5% are listed as critically ...
Species in Chromista (IUCN, 2021-2) 15 extant species have been evaluated; 6 of those are fully assessed [a] 0 are not threatened at present [b] 6 to 15 are threatened [c] 0 to 4 are extinct or extinct in the wild: 0 extinct (EX) species; 0 extinct in the wild (EW) 4 possibly extinct [CR(PE)] 0 possibly extinct in the wild [CR(PEW)]
2 extinct in the wild (EW) 0 possibly extinct [CR(PE)] 0 possibly extinct in the wild [CR(PEW)] In September 2016, the International Union for ...
Amphibian species (IUCN, 2016-2) 6492 extant species have been evaluated; 4925 of those are fully assessed [a] 2860 are not threatened at present [b] 2063 to 3630 are threatened [c] 35 to 148 are extinct or extinct in the wild: 33 extinct (EX) species [d] 2 extinct in the wild (EW) 113 possibly extinct [CR(PE)] 0 possibly extinct in the wild ...
Recently extinct mammals are defined by the International Union for Conservation of Nature (IUCN) as any mammals that have become extinct since the year 1500 CE. [1] Since then, roughly 80 mammal species have become extinct. [2]
Arthropod species (IUCN, 2016-2) 9470 extant species have been evaluated; 6580 of those are fully assessed [a] 4478 are not threatened at present [b] 2100 to 4990 are threatened [c] 83 to 169 are extinct or extinct in the wild: 81 extinct (EX) species [d] 2 extinct in the wild (EW) 86 possibly extinct [CR(PE)] 0 possibly extinct in the wild [CR ...
Critical (Possibly Extinct) CR (PE), a semi-official category introduced by BirdLife International and likely to be adopted by other authorities including the IUCN in the near future. The weight of evidence points against the continuing existence of the taxon, but final surveys are still pending.
Reptile species (IUCN, 2016-2) 5130 extant species have been evaluated; 4220 of those are fully assessed [a] 3229 are not threatened at present [b] 989 to 1899 are threatened [c] 26 to 43 are extinct or extinct in the wild: 24 extinct (EX) species [d] 2 extinct in the wild (EW) 17 possibly extinct [CR(PE)] 0 possibly extinct in the wild [CR(PEW)]