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The World's 100 most threatened species [1] is a compilation of the most threatened animals, plants, and fungi in the world. It was the result of a collaboration between over 8,000 scientists from the International Union for Conservation of Nature Species Survival Commission (IUCN SSC), along with the Zoological Society of London . [ 2 ]
The Red List of 2012 was released 19 July 2012 at Rio+20 Earth Summit; [17] nearly 2,000 species were added, [18] with 4 species to the extinct list, 2 to the rediscovered list. [19] The IUCN assessed a total of 63,837 species which revealed 19,817 are threatened with extinction.
In the 2021 film, Extinct, a thylacine named Burnie, along with a group of other extinct animals, help the movie's main characters travel through time to rescue their species from extinction. [169] In the 2022 science-fiction show The Peripheral the Tasmanian tiger is brought back into existence from DNA extracts. [170]
The disease, known as sea star wasting syndrome, decimated 95% of the creature’s population in 2013, leading to the sea star’s designation as a critically endangered species, according to the ...
The species came close to extinction but efforts to reintroduce it have proven successful. This only happened in fish-free lakes, because only those had enough frogs and enough genetic variation ...
Avian species (IUCN, 2020-3) 10,999 extant species have been evaluated; 10,947 of those are fully assessed [a] 9,461 are not threatened at present [b] 1,481 to 1,533 are threatened [c] 164 to 183 are extinct or extinct in the wild: 159 extinct (EX) species [d] 5 extinct in the wild (EW) 19 possibly extinct [CR(PE)]
Diagram of Lower Risk / near threatened in the older IUCN version 2.3, beside the former Lower Risk / conservation dependent subcategory.. Before 2001, the IUCN used the version 2.3 Categories and Criteria to assign conservation status, which included a separate category for conservation-dependent species ("Conservation Dependent", LR/cd).
Reptile species (IUCN, 2016-2) 5130 extant species have been evaluated; 4220 of those are fully assessed; 3229 are not threatened at present; 989 to 1899 are threatened; 26 to 43 are extinct or extinct in the wild: 24 extinct (EX) species; 2 extinct in the wild (EW) 17 possibly extinct [CR(PE)] 0 possibly extinct in the wild [CR(PEW)]